2 * processes.c: Process handles
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002-2011 Novell, Inc.
8 * Copyright 2011 Xamarin Inc
19 #include <sys/types.h>
27 #ifdef HAVE_SYS_PARAM_H
28 #include <sys/param.h>
32 #ifdef HAVE_SYS_WAIT_H
35 #ifdef HAVE_SYS_RESOURCE_H
36 #include <sys/resource.h>
39 #ifdef HAVE_SYS_MKDEV_H
40 #include <sys/mkdev.h>
47 /* sys/resource.h (for rusage) is required when using osx 10.3 (but not 10.4) */
49 #include <TargetConditionals.h>
50 #include <sys/resource.h>
57 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__)
59 #include <sys/sysctl.h>
60 # if !defined(__OpenBSD__)
61 # include <sys/utsname.h>
65 #ifdef PLATFORM_SOLARIS
66 /* procfs.h cannot be included if this define is set, but it seems to work fine if it is undefined */
67 #if _FILE_OFFSET_BITS == 64
68 #undef _FILE_OFFSET_BITS
70 #define _FILE_OFFSET_BITS 64
77 #include <KernelKit.h>
80 #include <mono/io-layer/wapi.h>
81 #include <mono/io-layer/wapi-private.h>
82 #include <mono/io-layer/handles-private.h>
83 #include <mono/io-layer/misc-private.h>
84 #include <mono/io-layer/process-private.h>
85 #include <mono/io-layer/threads.h>
86 #include <mono/utils/strenc.h>
87 #include <mono/utils/mono-path.h>
88 #include <mono/io-layer/timefuncs-private.h>
89 #include <mono/utils/mono-time.h>
90 #include <mono/utils/mono-membar.h>
91 #include <mono/utils/mono-mutex.h>
92 #include <mono/utils/mono-signal-handler.h>
94 /* The process' environment strings */
95 #if defined(__APPLE__) && !defined (__arm__) && !defined (__aarch64__)
96 /* Apple defines this in crt_externs.h but doesn't provide that header for
97 * arm-apple-darwin9. We'll manually define the symbol on Apple as it does
98 * in fact exist on all implementations (so far)
100 char ***_NSGetEnviron(void);
101 #define environ (*_NSGetEnviron())
103 extern char **environ;
107 #define DEBUG(...) g_message(__VA_ARGS__)
108 #define DEBUG_ENABLED 1
113 static guint32 process_wait (gpointer handle, guint32 timeout, gboolean alertable);
114 static void process_close (gpointer handle, gpointer data);
115 static gboolean is_pid_valid (pid_t pid);
117 #if !(defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__))
119 open_process_map (int pid, const char *mode);
122 struct _WapiHandleOps _wapi_process_ops = {
123 process_close, /* close_shared */
127 process_wait, /* special_wait */
132 static struct sigaction previous_chld_sa;
134 static mono_once_t process_sig_chld_once = MONO_ONCE_INIT;
135 static void process_add_sigchld_handler (void);
137 /* The signal-safe logic to use mono_processes goes like this:
138 * - The list must be safe to traverse for the signal handler at all times.
139 * It's safe to: prepend an entry (which is a single store to 'mono_processes'),
140 * unlink an entry (assuming the unlinked entry isn't freed and doesn't
141 * change its 'next' pointer so that it can still be traversed).
142 * When cleaning up we first unlink an entry, then we verify that
143 * the read lock isn't locked. Then we can free the entry, since
144 * we know that nobody is using the old version of the list (including
145 * the unlinked entry).
146 * We also need to lock when adding and cleaning up so that those two
147 * operations don't mess with eachother. (This lock is not used in the
150 static struct MonoProcess *mono_processes = NULL;
151 static volatile gint32 mono_processes_cleaning_up = 0;
152 static mono_mutex_t mono_processes_mutex;
153 static void mono_processes_cleanup (void);
155 static gpointer current_process;
156 static char *cli_launcher;
158 static WapiHandle_process *
159 lookup_process_handle (gpointer handle)
161 WapiHandle_process *process_data;
164 ret = _wapi_lookup_handle (handle, WAPI_HANDLE_PROCESS,
165 (gpointer *)&process_data);
171 /* Check if a pid is valid - i.e. if a process exists with this pid. */
173 is_pid_valid (pid_t pid)
175 gboolean result = FALSE;
177 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__)
178 if (((kill(pid, 0) == 0) || (errno == EPERM)) && pid != 0)
180 #elif defined(__HAIKU__)
182 if (get_team_info ((team_id)pid, &teamInfo) == B_OK)
185 char *dir = g_strdup_printf ("/proc/%d", pid);
186 if (!access (dir, F_OK))
195 process_set_defaults (WapiHandle_process *process_handle)
197 /* These seem to be the defaults on w2k */
198 process_handle->min_working_set = 204800;
199 process_handle->max_working_set = 1413120;
201 _wapi_time_t_to_filetime (time (NULL), &process_handle->create_time);
205 len16 (const gunichar2 *str)
216 utf16_concat (const gunichar2 *first, ...)
223 va_start (args, first);
224 total += len16 (first);
225 for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg(args, gunichar2 *)){
230 ret = g_new (gunichar2, total + 1);
236 for (s = first; *s != 0; s++)
238 va_start (args, first);
239 for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg (args, gunichar2 *)){
242 for (p = s; *p != 0; p++)
250 static const gunichar2 utf16_space_bytes [2] = { 0x20, 0 };
251 static const gunichar2 *utf16_space = utf16_space_bytes;
252 static const gunichar2 utf16_quote_bytes [2] = { 0x22, 0 };
253 static const gunichar2 *utf16_quote = utf16_quote_bytes;
258 print_utf16 (gunichar2 *str)
262 res = g_utf16_to_utf8 (str, -1, NULL, NULL, NULL);
263 g_print ("%s\n", res);
268 /* Implemented as just a wrapper around CreateProcess () */
270 ShellExecuteEx (WapiShellExecuteInfo *sei)
273 WapiProcessInformation process_info;
277 /* w2k just segfaults here, but we can do better than
280 SetLastError (ERROR_INVALID_PARAMETER);
284 if (sei->lpFile == NULL)
285 /* w2k returns TRUE for this, for some reason. */
288 /* Put both executable and parameters into the second argument
289 * to CreateProcess (), so it searches $PATH. The conversion
290 * into and back out of utf8 is because there is no
291 * g_strdup_printf () equivalent for gunichar2 :-(
293 args = utf16_concat (utf16_quote, sei->lpFile, utf16_quote, sei->lpParameters == NULL ? NULL : utf16_space, sei->lpParameters, NULL);
295 SetLastError (ERROR_INVALID_DATA);
298 ret = CreateProcess (NULL, args, NULL, NULL, TRUE,
299 CREATE_UNICODE_ENVIRONMENT, NULL,
300 sei->lpDirectory, NULL, &process_info);
303 if (!ret && GetLastError () == ERROR_OUTOFMEMORY)
307 static char *handler;
308 static gunichar2 *handler_utf16;
310 if (handler_utf16 == (gunichar2 *)-1)
313 #ifdef PLATFORM_MACOSX
314 handler = g_strdup ("/usr/bin/open");
317 * On Linux, try: xdg-open, the FreeDesktop standard way of doing it,
318 * if that fails, try to use gnome-open, then kfmclient
320 handler = g_find_program_in_path ("xdg-open");
321 if (handler == NULL){
322 handler = g_find_program_in_path ("gnome-open");
323 if (handler == NULL){
324 handler = g_find_program_in_path ("kfmclient");
325 if (handler == NULL){
326 handler_utf16 = (gunichar2 *) -1;
329 /* kfmclient needs exec argument */
331 handler = g_strconcat (old, " exec",
338 handler_utf16 = g_utf8_to_utf16 (handler, -1, NULL, NULL, NULL);
341 /* Put quotes around the filename, in case it's a url
342 * that contains #'s (CreateProcess() calls
343 * g_shell_parse_argv(), which deliberately throws
344 * away anything after an unquoted #). Fixes bug
347 args = utf16_concat (handler_utf16, utf16_space, utf16_quote,
348 sei->lpFile, utf16_quote,
349 sei->lpParameters == NULL ? NULL : utf16_space,
350 sei->lpParameters, NULL);
352 SetLastError (ERROR_INVALID_DATA);
355 ret = CreateProcess (NULL, args, NULL, NULL, TRUE,
356 CREATE_UNICODE_ENVIRONMENT, NULL,
357 sei->lpDirectory, NULL, &process_info);
360 if (GetLastError () != ERROR_OUTOFMEMORY)
361 SetLastError (ERROR_INVALID_DATA);
364 /* Shell exec should not return a process handle when it spawned a GUI thing, like a browser. */
365 CloseHandle (process_info.hProcess);
366 process_info.hProcess = NULL;
369 if (sei->fMask & SEE_MASK_NOCLOSEPROCESS)
370 sei->hProcess = process_info.hProcess;
372 CloseHandle (process_info.hProcess);
378 is_managed_binary (const char *filename)
380 int original_errno = errno;
381 #if defined(HAVE_LARGE_FILE_SUPPORT) && defined(O_LARGEFILE)
382 int file = open (filename, O_RDONLY | O_LARGEFILE);
384 int file = open (filename, O_RDONLY);
387 unsigned char buffer[8];
388 off_t file_size, optional_header_offset;
389 off_t pe_header_offset;
390 gboolean managed = FALSE;
392 guint32 first_word, second_word;
394 /* If we are unable to open the file, then we definitely
395 * can't say that it is managed. The child mono process
396 * probably wouldn't be able to open it anyway.
399 errno = original_errno;
403 /* Retrieve the length of the file for future sanity checks. */
404 file_size = lseek (file, 0, SEEK_END);
405 lseek (file, 0, SEEK_SET);
407 /* We know we need to read a header field at offset 60. */
411 num_read = read (file, buffer, 2);
413 if ((num_read != 2) || (buffer[0] != 'M') || (buffer[1] != 'Z'))
416 new_offset = lseek (file, 60, SEEK_SET);
418 if (new_offset != 60)
421 num_read = read (file, buffer, 4);
425 pe_header_offset = buffer[0]
430 if (pe_header_offset + 24 > file_size)
433 new_offset = lseek (file, pe_header_offset, SEEK_SET);
435 if (new_offset != pe_header_offset)
438 num_read = read (file, buffer, 4);
440 if ((num_read != 4) || (buffer[0] != 'P') || (buffer[1] != 'E') || (buffer[2] != 0) || (buffer[3] != 0))
444 * Verify that the header we want in the optional header data
445 * is present in this binary.
447 new_offset = lseek (file, pe_header_offset + 20, SEEK_SET);
449 if (new_offset != pe_header_offset + 20)
452 num_read = read (file, buffer, 2);
454 if ((num_read != 2) || ((buffer[0] | (buffer[1] << 8)) < 216))
457 /* Read the CLR header address and size fields. These will be
458 * zero if the binary is not managed.
460 optional_header_offset = pe_header_offset + 24;
461 new_offset = lseek (file, optional_header_offset + 208, SEEK_SET);
463 if (new_offset != optional_header_offset + 208)
466 num_read = read (file, buffer, 8);
468 /* We are not concerned with endianness, only with
469 * whether it is zero or not.
471 first_word = *(guint32 *)&buffer[0];
472 second_word = *(guint32 *)&buffer[4];
474 if ((num_read != 8) || (first_word == 0) || (second_word == 0))
481 errno = original_errno;
486 CreateProcessWithLogonW (const gunichar2 *username,
487 const gunichar2 *domain,
488 const gunichar2 *password,
489 const guint32 logonFlags,
490 const gunichar2 *appname,
491 const gunichar2 *cmdline,
492 guint32 create_flags,
494 const gunichar2 *cwd,
495 WapiStartupInfo *startup,
496 WapiProcessInformation *process_info)
498 /* FIXME: use user information */
499 return CreateProcess (appname, cmdline, NULL, NULL, FALSE, create_flags, env, cwd, startup, process_info);
503 is_readable_or_executable (const char *prog)
506 int a = access (prog, R_OK);
507 int b = access (prog, X_OK);
508 if (a != 0 && b != 0)
510 if (stat (prog, &buf))
512 if (S_ISREG (buf.st_mode))
518 is_executable (const char *prog)
521 if (access (prog, X_OK) != 0)
523 if (stat (prog, &buf))
525 if (S_ISREG (buf.st_mode))
531 switch_dir_separators (char *path)
533 size_t i, pathLength = strlen(path);
535 /* Turn all the slashes round the right way, except for \' */
536 /* There are probably other characters that need to be excluded as well. */
537 for (i = 0; i < pathLength; i++) {
538 if (path[i] == '\\' && i < pathLength - 1 && path[i+1] != '\'' )
543 gboolean CreateProcess (const gunichar2 *appname, const gunichar2 *cmdline,
544 WapiSecurityAttributes *process_attrs G_GNUC_UNUSED,
545 WapiSecurityAttributes *thread_attrs G_GNUC_UNUSED,
546 gboolean inherit_handles, guint32 create_flags,
547 gpointer new_environ, const gunichar2 *cwd,
548 WapiStartupInfo *startup,
549 WapiProcessInformation *process_info)
551 char *cmd = NULL, *prog = NULL, *full_prog = NULL, *args = NULL, *args_after_prog = NULL;
552 char *dir = NULL, **env_strings = NULL, **argv = NULL;
553 guint32 i, env_count = 0;
554 gboolean ret = FALSE;
556 WapiHandle_process process_handle = {0}, *process_handle_data;
558 int in_fd, out_fd, err_fd;
561 int startup_pipe [2] = {-1, -1};
563 struct MonoProcess *mono_process;
564 gboolean fork_failed = FALSE;
566 mono_once (&process_sig_chld_once, process_add_sigchld_handler);
568 /* appname and cmdline specify the executable and its args:
570 * If appname is not NULL, it is the name of the executable.
571 * Otherwise the executable is the first token in cmdline.
573 * Executable searching:
575 * If appname is not NULL, it can specify the full path and
576 * file name, or else a partial name and the current directory
577 * will be used. There is no additional searching.
579 * If appname is NULL, the first whitespace-delimited token in
580 * cmdline is used. If the name does not contain a full
581 * directory path, the search sequence is:
583 * 1) The directory containing the current process
584 * 2) The current working directory
585 * 3) The windows system directory (Ignored)
586 * 4) The windows directory (Ignored)
589 * Just to make things more interesting, tokens can contain
590 * white space if they are surrounded by quotation marks. I'm
591 * beginning to understand just why windows apps are generally
592 * so crap, with an API like this :-(
594 if (appname != NULL) {
595 cmd = mono_unicode_to_external (appname);
597 DEBUG ("%s: unicode conversion returned NULL",
600 SetLastError (ERROR_PATH_NOT_FOUND);
604 switch_dir_separators(cmd);
607 if (cmdline != NULL) {
608 args = mono_unicode_to_external (cmdline);
610 DEBUG ("%s: unicode conversion returned NULL", __func__);
612 SetLastError (ERROR_PATH_NOT_FOUND);
618 dir = mono_unicode_to_external (cwd);
620 DEBUG ("%s: unicode conversion returned NULL", __func__);
622 SetLastError (ERROR_PATH_NOT_FOUND);
626 /* Turn all the slashes round the right way */
627 switch_dir_separators(dir);
631 /* We can't put off locating the executable any longer :-( */
634 if (g_ascii_isalpha (cmd[0]) && (cmd[1] == ':')) {
635 /* Strip off the drive letter. I can't
636 * believe that CP/M holdover is still
639 g_memmove (cmd, cmd+2, strlen (cmd)-2);
640 cmd[strlen (cmd)-2] = '\0';
643 unquoted = g_shell_unquote (cmd, NULL);
644 if (unquoted[0] == '/') {
645 /* Assume full path given */
646 prog = g_strdup (unquoted);
648 /* Executable existing ? */
649 if (!is_readable_or_executable (prog)) {
650 DEBUG ("%s: Couldn't find executable %s",
653 SetLastError (ERROR_FILE_NOT_FOUND);
657 /* Search for file named by cmd in the current
660 char *curdir = g_get_current_dir ();
662 prog = g_strdup_printf ("%s/%s", curdir, unquoted);
665 /* And make sure it's readable */
666 if (!is_readable_or_executable (prog)) {
667 DEBUG ("%s: Couldn't find executable %s",
670 SetLastError (ERROR_FILE_NOT_FOUND);
676 args_after_prog = args;
681 /* Dig out the first token from args, taking quotation
685 /* First, strip off all leading whitespace */
686 args = g_strchug (args);
688 /* args_after_prog points to the contents of args
689 * after token has been set (otherwise argv[0] is
692 args_after_prog = args;
694 /* Assume the opening quote will always be the first
697 if (args[0] == '\"' || args [0] == '\'') {
699 for (i = 1; args[i] != '\0' && args[i] != quote; i++);
700 if (args [i + 1] == '\0' || g_ascii_isspace (args[i+1])) {
701 /* We found the first token */
702 token = g_strndup (args+1, i-1);
703 args_after_prog = g_strchug (args + i + 1);
705 /* Quotation mark appeared in the
706 * middle of the token. Just give the
707 * whole first token, quotes and all,
714 /* No quote mark, or malformed */
715 for (i = 0; args[i] != '\0'; i++) {
716 if (g_ascii_isspace (args[i])) {
717 token = g_strndup (args, i);
718 args_after_prog = args + i + 1;
724 if (token == NULL && args[0] != '\0') {
725 /* Must be just one token in the string */
726 token = g_strdup (args);
727 args_after_prog = NULL;
732 DEBUG ("%s: Couldn't find what to exec", __func__);
734 SetLastError (ERROR_PATH_NOT_FOUND);
738 /* Turn all the slashes round the right way. Only for
741 switch_dir_separators(token);
743 if (g_ascii_isalpha (token[0]) && (token[1] == ':')) {
744 /* Strip off the drive letter. I can't
745 * believe that CP/M holdover is still
748 g_memmove (token, token+2, strlen (token)-2);
749 token[strlen (token)-2] = '\0';
752 if (token[0] == '/') {
753 /* Assume full path given */
754 prog = g_strdup (token);
756 /* Executable existing ? */
757 if (!is_readable_or_executable (prog)) {
758 DEBUG ("%s: Couldn't find executable %s",
761 SetLastError (ERROR_FILE_NOT_FOUND);
765 char *curdir = g_get_current_dir ();
767 /* FIXME: Need to record the directory
768 * containing the current process, and check
769 * that for the new executable as the first
773 prog = g_strdup_printf ("%s/%s", curdir, token);
776 /* I assume X_OK is the criterion to use,
779 * X_OK is too strict *if* the target is a CLR binary
781 if (!is_readable_or_executable (prog)) {
783 prog = g_find_program_in_path (token);
785 DEBUG ("%s: Couldn't find executable %s", __func__, token);
788 SetLastError (ERROR_FILE_NOT_FOUND);
797 DEBUG ("%s: Exec prog [%s] args [%s]", __func__, prog,
800 /* Check for CLR binaries; if found, we will try to invoke
801 * them using the same mono binary that started us.
803 if (is_managed_binary (prog)) {
804 gunichar2 *newapp = NULL, *newcmd;
808 newapp = mono_unicode_from_external (cli_launcher, &bytes_ignored);
810 newapp = mono_unicode_from_external ("mono", &bytes_ignored);
812 if (newapp != NULL) {
813 if (appname != NULL) {
814 newcmd = utf16_concat (newapp, utf16_space,
815 appname, utf16_space,
818 newcmd = utf16_concat (newapp, utf16_space,
822 g_free ((gunichar2 *)newapp);
824 if (newcmd != NULL) {
825 ret = CreateProcess (NULL, newcmd,
829 create_flags, new_environ,
833 g_free ((gunichar2 *)newcmd);
839 if (!is_executable (prog)) {
840 DEBUG ("%s: Executable permisson not set on %s", __func__, prog);
842 SetLastError (ERROR_ACCESS_DENIED);
847 if (args_after_prog != NULL && *args_after_prog) {
850 qprog = g_shell_quote (prog);
851 full_prog = g_strconcat (qprog, " ", args_after_prog, NULL);
854 full_prog = g_shell_quote (prog);
857 ret = g_shell_parse_argv (full_prog, NULL, &argv, &gerr);
859 g_message ("CreateProcess: %s\n", gerr->message);
865 if (startup != NULL && startup->dwFlags & STARTF_USESTDHANDLES) {
866 in_fd = GPOINTER_TO_UINT (startup->hStdInput);
867 out_fd = GPOINTER_TO_UINT (startup->hStdOutput);
868 err_fd = GPOINTER_TO_UINT (startup->hStdError);
870 in_fd = GPOINTER_TO_UINT (GetStdHandle (STD_INPUT_HANDLE));
871 out_fd = GPOINTER_TO_UINT (GetStdHandle (STD_OUTPUT_HANDLE));
872 err_fd = GPOINTER_TO_UINT (GetStdHandle (STD_ERROR_HANDLE));
875 process_handle.proc_name = g_strdup (prog);
877 process_set_defaults (&process_handle);
879 handle = _wapi_handle_new (WAPI_HANDLE_PROCESS, &process_handle);
880 if (handle == _WAPI_HANDLE_INVALID) {
881 g_warning ("%s: error creating process handle", __func__);
884 SetLastError (ERROR_OUTOFMEMORY);
888 /* new_environ is a block of NULL-terminated strings, which
889 * is itself NULL-terminated. Of course, passing an array of
890 * string pointers would have made things too easy :-(
892 * If new_environ is not NULL it specifies the entire set of
893 * environment variables in the new process. Otherwise the
894 * new process inherits the same environment.
897 gunichar2 *new_environp;
899 /* Count the number of strings */
900 for (new_environp = (gunichar2 *)new_environ; *new_environp;
903 while (*new_environp) {
908 /* +2: one for the process handle value, and the last
911 env_strings = g_new0 (char *, env_count + 2);
913 /* Copy each environ string into 'strings' turning it
914 * into utf8 (or the requested encoding) at the same
918 for (new_environp = (gunichar2 *)new_environ; *new_environp;
920 env_strings[env_count] = mono_unicode_to_external (new_environp);
922 while (*new_environp) {
927 for (i = 0; environ[i] != NULL; i++)
930 /* +2: one for the process handle value, and the last
933 env_strings = g_new0 (char *, env_count + 2);
935 /* Copy each environ string into 'strings' turning it
936 * into utf8 (or the requested encoding) at the same
940 for (i = 0; environ[i] != NULL; i++) {
941 env_strings[env_count] = g_strdup (environ[i]);
946 /* Create a pipe to make sure the child doesn't exit before
947 * we can add the process to the linked list of mono_processes */
948 if (pipe (startup_pipe) == -1) {
949 /* Could not create the pipe to synchroniz process startup. We'll just not synchronize.
950 * This is just for a very hard to hit race condition in the first place */
951 startup_pipe [0] = startup_pipe [1] = -1;
952 DEBUG ("%s: new process startup not synchronized. We may not notice if the newly created process exits immediately.", __func__);
955 thr_ret = _wapi_handle_lock_shared_handles ();
956 g_assert (thr_ret == 0);
961 SetLastError (ERROR_OUTOFMEMORY);
965 } else if (pid == 0) {
968 if (startup_pipe [0] != -1) {
969 /* Wait until the parent has updated it's internal data */
970 ssize_t _i G_GNUC_UNUSED = read (startup_pipe [0], &dummy, 1);
971 DEBUG ("%s: child: parent has completed its setup", __func__);
972 close (startup_pipe [0]);
973 close (startup_pipe [1]);
976 /* should we detach from the process group? */
978 /* Connect stdin, stdout and stderr */
983 if (inherit_handles != TRUE) {
984 /* FIXME: do something here */
987 /* Close all file descriptors */
988 for (i = wapi_getdtablesize () - 1; i > 2; i--)
992 DEBUG ("%s: exec()ing [%s] in dir [%s]", __func__, cmd,
993 dir == NULL?".":dir);
994 for (i = 0; argv[i] != NULL; i++)
995 g_message ("arg %d: [%s]", i, argv[i]);
997 for (i = 0; env_strings[i] != NULL; i++)
998 g_message ("env %d: [%s]", i, env_strings[i]);
1002 if (dir != NULL && chdir (dir) == -1) {
1008 execve (argv[0], argv, env_strings);
1015 process_handle_data = lookup_process_handle (handle);
1016 if (!process_handle_data) {
1017 g_warning ("%s: error looking up process handle %p", __func__,
1019 _wapi_handle_unref (handle);
1023 process_handle_data->id = pid;
1025 /* Add our mono_process into the linked list of mono_processes */
1026 mono_process = (struct MonoProcess *) g_malloc0 (sizeof (struct MonoProcess));
1027 mono_process->pid = pid;
1028 mono_process->handle_count = 1;
1029 if (MONO_SEM_INIT (&mono_process->exit_sem, 0) != 0) {
1030 /* If we can't create the exit semaphore, we just don't add anything
1031 * to our list of mono processes. Waiting on the process will return
1033 g_warning ("%s: could not create exit semaphore for process.", strerror (errno));
1034 g_free (mono_process);
1036 /* Keep the process handle artificially alive until the process
1037 * exits so that the information in the handle isn't lost. */
1038 _wapi_handle_ref (handle);
1039 mono_process->handle = handle;
1041 process_handle_data->mono_process = mono_process;
1043 mono_mutex_lock (&mono_processes_mutex);
1044 mono_process->next = mono_processes;
1045 mono_processes = mono_process;
1046 mono_mutex_unlock (&mono_processes_mutex);
1049 if (process_info != NULL) {
1050 process_info->hProcess = handle;
1051 process_info->dwProcessId = pid;
1053 /* FIXME: we might need to handle the thread info some
1056 process_info->hThread = INVALID_HANDLE_VALUE;
1057 process_info->dwThreadId = 0;
1061 _wapi_handle_unlock_shared_handles ();
1064 _wapi_handle_unref (handle);
1066 if (startup_pipe [1] != -1) {
1067 /* Write 1 byte, doesn't matter what */
1068 ssize_t _i G_GNUC_UNUSED = write (startup_pipe [1], startup_pipe, 1);
1069 close (startup_pipe [0]);
1070 close (startup_pipe [1]);
1085 g_strfreev (env_strings);
1089 DEBUG ("%s: returning handle %p for pid %d", __func__, handle,
1092 /* Check if something needs to be cleaned up. */
1093 mono_processes_cleanup ();
1099 process_set_name (WapiHandle_process *process_handle)
1101 char *progname, *utf8_progname, *slash;
1103 progname = g_get_prgname ();
1104 utf8_progname = mono_utf8_from_external (progname);
1106 DEBUG ("%s: using [%s] as prog name", __func__, progname);
1108 if (utf8_progname) {
1109 slash = strrchr (utf8_progname, '/');
1111 process_handle->proc_name = g_strdup (slash+1);
1113 process_handle->proc_name = g_strdup (utf8_progname);
1114 g_free (utf8_progname);
1119 wapi_processes_init (void)
1121 pid_t pid = _wapi_getpid ();
1122 WapiHandle_process process_handle = {0};
1124 _wapi_handle_register_capabilities (WAPI_HANDLE_PROCESS,
1125 WAPI_HANDLE_CAP_WAIT |
1126 WAPI_HANDLE_CAP_SPECIAL_WAIT);
1128 process_handle.id = pid;
1130 process_set_defaults (&process_handle);
1131 process_set_name (&process_handle);
1133 current_process = _wapi_handle_new (WAPI_HANDLE_PROCESS,
1135 g_assert (current_process);
1139 _wapi_process_duplicate (void)
1141 _wapi_handle_ref (current_process);
1143 return current_process;
1146 /* Returns a pseudo handle that doesn't need to be closed afterwards */
1148 GetCurrentProcess (void)
1150 return _WAPI_PROCESS_CURRENT;
1154 GetProcessId (gpointer handle)
1156 WapiHandle_process *process_handle;
1158 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (handle))
1159 /* This is a pseudo handle */
1160 return WAPI_HANDLE_TO_PID (handle);
1162 process_handle = lookup_process_handle (handle);
1163 if (!process_handle) {
1164 SetLastError (ERROR_INVALID_HANDLE);
1168 return process_handle->id;
1172 process_open_compare (gpointer handle, gpointer user_data)
1175 WapiHandle_process *process_handle;
1178 g_assert (!WAPI_IS_PSEUDO_PROCESS_HANDLE (handle));
1180 process_handle = lookup_process_handle (handle);
1181 g_assert (process_handle);
1183 DEBUG ("%s: looking at process %d", __func__, process_handle->id);
1185 checking_pid = process_handle->id;
1187 if (checking_pid == 0)
1190 wanted_pid = GPOINTER_TO_UINT (user_data);
1192 /* It's possible to have more than one process handle with the
1193 * same pid, but only the one running process can be
1196 if (checking_pid == wanted_pid &&
1197 !_wapi_handle_issignalled (handle)) {
1198 /* If the handle is blown away in the window between
1199 * returning TRUE here and _wapi_search_handle pinging
1200 * the timestamp, the search will continue
1209 CloseProcess (gpointer handle)
1211 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (handle))
1213 return CloseHandle (handle);
1217 * The caller owns the returned handle and must call CloseProcess () on it to clean it up.
1220 OpenProcess (guint32 req_access G_GNUC_UNUSED, gboolean inherit G_GNUC_UNUSED, guint32 pid)
1222 /* Find the process handle that corresponds to pid */
1223 gpointer handle = NULL;
1225 DEBUG ("%s: looking for process %d", __func__, pid);
1227 handle = _wapi_search_handle (WAPI_HANDLE_PROCESS,
1228 process_open_compare,
1229 GUINT_TO_POINTER (pid), NULL, TRUE);
1231 if (is_pid_valid (pid)) {
1232 /* Return a pseudo handle for processes we
1233 * don't have handles for
1235 return WAPI_PID_TO_HANDLE (pid);
1237 DEBUG ("%s: Can't find pid %d", __func__, pid);
1239 SetLastError (ERROR_PROC_NOT_FOUND);
1245 /* _wapi_search_handle () already added a ref */
1250 GetExitCodeProcess (gpointer process, guint32 *code)
1252 WapiHandle_process *process_handle;
1258 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
1259 pid = WAPI_HANDLE_TO_PID (process);
1260 /* This is a pseudo handle, so we don't know what the
1261 * exit code was, but we can check whether it's alive or not
1263 if (is_pid_valid (pid)) {
1264 *code = STILL_ACTIVE;
1271 process_handle = lookup_process_handle (process);
1272 if (!process_handle) {
1273 DEBUG ("%s: Can't find process %p", __func__, process);
1278 if (process_handle->id == _wapi_getpid ()) {
1279 *code = STILL_ACTIVE;
1283 /* A process handle is only signalled if the process has exited
1284 * and has been waited for */
1286 /* Make sure any process exit has been noticed, before
1287 * checking if the process is signalled. Fixes bug 325463.
1289 process_wait (process, 0, TRUE);
1291 if (_wapi_handle_issignalled (process))
1292 *code = process_handle->exitstatus;
1294 *code = STILL_ACTIVE;
1300 GetProcessTimes (gpointer process, WapiFileTime *create_time,
1301 WapiFileTime *exit_time, WapiFileTime *kernel_time,
1302 WapiFileTime *user_time)
1304 WapiHandle_process *process_handle;
1305 gboolean ku_times_set = FALSE;
1307 if (create_time == NULL || exit_time == NULL || kernel_time == NULL ||
1309 /* Not sure if w32 allows NULLs here or not */
1312 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process))
1313 /* This is a pseudo handle, so just fail for now
1317 process_handle = lookup_process_handle (process);
1318 if (!process_handle) {
1319 DEBUG ("%s: Can't find process %p", __func__, process);
1324 *create_time = process_handle->create_time;
1326 /* A process handle is only signalled if the process has
1327 * exited. Otherwise exit_time isn't set
1329 if (_wapi_handle_issignalled (process))
1330 *exit_time = process_handle->exit_time;
1332 #ifdef HAVE_GETRUSAGE
1333 if (process_handle->id == getpid ()) {
1334 struct rusage time_data;
1335 if (getrusage (RUSAGE_SELF, &time_data) == 0) {
1337 ku_times_set = TRUE;
1338 tick_val = (guint64)time_data.ru_utime.tv_sec * 10000000 + (guint64)time_data.ru_utime.tv_usec * 10;
1339 _wapi_guint64_to_filetime (tick_val, user_time);
1340 tick_val = (guint64)time_data.ru_stime.tv_sec * 10000000 + (guint64)time_data.ru_stime.tv_usec * 10;
1341 _wapi_guint64_to_filetime (tick_val, kernel_time);
1345 if (!ku_times_set) {
1346 memset (kernel_time, 0, sizeof (WapiFileTime));
1347 memset (user_time, 0, sizeof (WapiFileTime));
1355 gpointer address_start;
1356 gpointer address_end;
1358 gpointer address_offset;
1364 static void free_procmodule (WapiProcModule *mod)
1366 if (mod->perms != NULL) {
1367 g_free (mod->perms);
1369 if (mod->filename != NULL) {
1370 g_free (mod->filename);
1375 static gint find_procmodule (gconstpointer a, gconstpointer b)
1377 WapiProcModule *want = (WapiProcModule *)a;
1378 WapiProcModule *compare = (WapiProcModule *)b;
1380 if ((want->device == compare->device) &&
1381 (want->inode == compare->inode)) {
1388 #ifdef PLATFORM_MACOSX
1389 #include <mach-o/dyld.h>
1390 #include <mach-o/getsect.h>
1392 static GSList *load_modules (void)
1395 WapiProcModule *mod;
1396 uint32_t count = _dyld_image_count ();
1399 for (i = 0; i < count; i++) {
1400 #if SIZEOF_VOID_P == 8
1401 const struct mach_header_64 *hdr;
1402 const struct section_64 *sec;
1404 const struct mach_header *hdr;
1405 const struct section *sec;
1409 name = _dyld_get_image_name (i);
1410 #if SIZEOF_VOID_P == 8
1411 hdr = (const struct mach_header_64*)_dyld_get_image_header (i);
1412 sec = getsectbynamefromheader_64 (hdr, SEG_DATA, SECT_DATA);
1414 hdr = _dyld_get_image_header (i);
1415 sec = getsectbynamefromheader (hdr, SEG_DATA, SECT_DATA);
1418 /* Some dynlibs do not have data sections on osx (#533893) */
1423 mod = g_new0 (WapiProcModule, 1);
1424 mod->address_start = GINT_TO_POINTER (sec->addr);
1425 mod->address_end = GINT_TO_POINTER (sec->addr+sec->size);
1426 mod->perms = g_strdup ("r--p");
1427 mod->address_offset = 0;
1428 mod->device = makedev (0, 0);
1430 mod->filename = g_strdup (name);
1432 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1433 ret = g_slist_prepend (ret, mod);
1435 free_procmodule (mod);
1439 ret = g_slist_reverse (ret);
1443 #elif defined(__OpenBSD__)
1445 static int load_modules_callback (struct dl_phdr_info *info, size_t size, void *ptr)
1447 if (size < offsetof (struct dl_phdr_info, dlpi_phnum)
1448 + sizeof (info->dlpi_phnum))
1451 struct dl_phdr_info *cpy = calloc(1, sizeof(struct dl_phdr_info));
1455 memcpy(cpy, info, sizeof(*info));
1457 g_ptr_array_add ((GPtrArray *)ptr, cpy);
1462 static GSList *load_modules (void)
1465 WapiProcModule *mod;
1466 GPtrArray *dlarray = g_ptr_array_new();
1469 if (dl_iterate_phdr(load_modules_callback, dlarray) < 0)
1472 for (i = 0; i < dlarray->len; i++) {
1473 struct dl_phdr_info *info = g_ptr_array_index (dlarray, i);
1475 mod = g_new0 (WapiProcModule, 1);
1476 mod->address_start = (gpointer)(info->dlpi_addr + info->dlpi_phdr[0].p_vaddr);
1477 mod->address_end = (gpointer)(info->dlpi_addr +
1478 info->dlpi_phdr[info->dlpi_phnum - 1].p_vaddr);
1479 mod->perms = g_strdup ("r--p");
1480 mod->address_offset = 0;
1482 mod->filename = g_strdup (info->dlpi_name);
1484 DEBUG ("%s: inode=%d, filename=%s, address_start=%p, address_end=%p", __func__,
1485 mod->inode, mod->filename, mod->address_start, mod->address_end);
1489 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1490 ret = g_slist_prepend (ret, mod);
1492 free_procmodule (mod);
1496 g_ptr_array_free (dlarray, TRUE);
1498 ret = g_slist_reverse (ret);
1502 #elif defined(__HAIKU__)
1504 static GSList *load_modules (void)
1507 WapiProcModule *mod;
1509 image_info imageInfo;
1511 while (get_next_image_info (B_CURRENT_TEAM, &cookie, &imageInfo) == B_OK) {
1512 mod = g_new0 (WapiProcModule, 1);
1513 mod->device = imageInfo.device;
1514 mod->inode = imageInfo.node;
1515 mod->filename = g_strdup (imageInfo.name);
1516 mod->address_start = MIN (imageInfo.text, imageInfo.data);
1517 mod->address_end = MAX ((uint8_t*)imageInfo.text + imageInfo.text_size,
1518 (uint8_t*)imageInfo.data + imageInfo.data_size);
1519 mod->perms = g_strdup ("r--p");
1520 mod->address_offset = 0;
1522 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1523 ret = g_slist_prepend (ret, mod);
1525 free_procmodule (mod);
1529 ret = g_slist_reverse (ret);
1534 static GSList *load_modules (FILE *fp)
1537 WapiProcModule *mod;
1538 char buf[MAXPATHLEN + 1], *p, *endp;
1539 char *start_start, *end_start, *prot_start, *offset_start;
1540 char *maj_dev_start, *min_dev_start, *inode_start, prot_buf[5];
1541 gpointer address_start, address_end, address_offset;
1542 guint32 maj_dev, min_dev;
1546 while (fgets (buf, sizeof(buf), fp)) {
1548 while (g_ascii_isspace (*p)) ++p;
1550 if (!g_ascii_isxdigit (*start_start)) {
1553 address_start = (gpointer)strtoul (start_start, &endp, 16);
1561 if (!g_ascii_isxdigit (*end_start)) {
1564 address_end = (gpointer)strtoul (end_start, &endp, 16);
1566 if (!g_ascii_isspace (*p)) {
1570 while (g_ascii_isspace (*p)) ++p;
1572 if (*prot_start != 'r' && *prot_start != '-') {
1575 memcpy (prot_buf, prot_start, 4);
1577 while (!g_ascii_isspace (*p)) ++p;
1579 while (g_ascii_isspace (*p)) ++p;
1581 if (!g_ascii_isxdigit (*offset_start)) {
1584 address_offset = (gpointer)strtoul (offset_start, &endp, 16);
1586 if (!g_ascii_isspace (*p)) {
1590 while(g_ascii_isspace (*p)) ++p;
1592 if (!g_ascii_isxdigit (*maj_dev_start)) {
1595 maj_dev = strtoul (maj_dev_start, &endp, 16);
1603 if (!g_ascii_isxdigit (*min_dev_start)) {
1606 min_dev = strtoul (min_dev_start, &endp, 16);
1608 if (!g_ascii_isspace (*p)) {
1612 while (g_ascii_isspace (*p)) ++p;
1614 if (!g_ascii_isxdigit (*inode_start)) {
1617 inode = (guint64)strtol (inode_start, &endp, 10);
1619 if (!g_ascii_isspace (*p)) {
1623 device = makedev ((int)maj_dev, (int)min_dev);
1624 if ((device == 0) &&
1629 while(g_ascii_isspace (*p)) ++p;
1630 /* p now points to the filename */
1632 mod = g_new0 (WapiProcModule, 1);
1633 mod->address_start = address_start;
1634 mod->address_end = address_end;
1635 mod->perms = g_strdup (prot_buf);
1636 mod->address_offset = address_offset;
1637 mod->device = device;
1639 mod->filename = g_strdup (g_strstrip (p));
1641 if (g_slist_find_custom (ret, mod, find_procmodule) == NULL) {
1642 ret = g_slist_prepend (ret, mod);
1644 free_procmodule (mod);
1648 ret = g_slist_reverse (ret);
1654 static gboolean match_procname_to_modulename (char *procname, char *modulename)
1656 char* lastsep = NULL;
1657 char* lastsep2 = NULL;
1660 gboolean result = FALSE;
1662 if (procname == NULL || modulename == NULL)
1665 pname = mono_path_resolve_symlinks (procname);
1666 mname = mono_path_resolve_symlinks (modulename);
1668 if (!strcmp (pname, mname))
1672 lastsep = strrchr (mname, '/');
1674 if (!strcmp (lastsep+1, pname))
1677 lastsep2 = strrchr (pname, '/');
1680 if (!strcmp (lastsep+1, lastsep2+1))
1683 if (!strcmp (mname, lastsep2+1))
1696 #if !(defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__))
1698 open_process_map (int pid, const char *mode)
1701 const char *proc_path[] = {
1702 "/proc/%d/maps", /* GNU/Linux */
1703 "/proc/%d/map", /* FreeBSD */
1709 for (i = 0; fp == NULL && proc_path [i]; i++) {
1710 filename = g_strdup_printf (proc_path[i], pid);
1711 fp = fopen (filename, mode);
1719 gboolean EnumProcessModules (gpointer process, gpointer *modules,
1720 guint32 size, guint32 *needed)
1722 WapiHandle_process *process_handle;
1723 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
1726 GSList *mods = NULL;
1727 WapiProcModule *module;
1728 guint32 count, avail = size / sizeof(gpointer);
1731 char *proc_name = NULL;
1733 /* Store modules in an array of pointers (main module as
1734 * modules[0]), using the load address for each module as a
1735 * token. (Use 'NULL' as an alternative for the main module
1736 * so that the simple implementation can just return one item
1737 * for now.) Get the info from /proc/<pid>/maps on linux,
1738 * /proc/<pid>/map on FreeBSD, other systems will have to
1739 * implement /dev/kmem reading or whatever other horrid
1740 * technique is needed.
1742 if (size < sizeof(gpointer))
1745 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
1746 pid = WAPI_HANDLE_TO_PID (process);
1748 process_handle = lookup_process_handle (process);
1749 if (!process_handle) {
1750 DEBUG ("%s: Can't find process %p", __func__, process);
1754 pid = process_handle->id;
1755 proc_name = process_handle->proc_name;
1758 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
1759 mods = load_modules ();
1762 *needed = sizeof(gpointer);
1766 fp = open_process_map (pid, "r");
1768 /* No /proc/<pid>/maps so just return the main module
1772 *needed = sizeof(gpointer);
1775 mods = load_modules (fp);
1778 count = g_slist_length (mods);
1780 /* count + 1 to leave slot 0 for the main module */
1781 *needed = sizeof(gpointer) * (count + 1);
1784 * Use the NULL shortcut, as the first line in
1785 * /proc/<pid>/maps isn't the executable, and we need
1786 * that first in the returned list. Check the module name
1787 * to see if it ends with the proc name and substitute
1788 * the first entry with it. FIXME if this turns out to
1792 for (i = 0; i < (avail - 1) && i < count; i++) {
1793 module = (WapiProcModule *)g_slist_nth_data (mods, i);
1794 if (modules[0] != NULL)
1795 modules[i] = module->address_start;
1796 else if (match_procname_to_modulename (proc_name, module->filename))
1797 modules[0] = module->address_start;
1799 modules[i + 1] = module->address_start;
1802 for (i = 0; i < count; i++) {
1803 free_procmodule (g_slist_nth_data (mods, i));
1805 g_slist_free (mods);
1811 get_process_name_from_proc (pid_t pid)
1813 #if defined(__OpenBSD__)
1816 struct kinfo_proc *pi;
1817 #elif defined(PLATFORM_MACOSX)
1818 #if !(!defined (__mono_ppc__) && defined (TARGET_OSX))
1820 struct kinfo_proc *pi;
1821 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid };
1825 char *filename = NULL;
1830 #if defined(PLATFORM_SOLARIS)
1831 filename = g_strdup_printf ("/proc/%d/psinfo", pid);
1832 if ((fp = fopen (filename, "r")) != NULL) {
1836 nread = fread (&info, sizeof (info), 1, fp);
1838 ret = g_strdup (info.pr_fname);
1844 #elif defined(PLATFORM_MACOSX)
1845 #if !defined (__mono_ppc__) && defined (TARGET_OSX)
1846 /* No proc name on OSX < 10.5 nor ppc nor iOS */
1847 memset (buf, '\0', sizeof(buf));
1848 proc_name (pid, buf, sizeof(buf));
1849 if (strlen (buf) > 0)
1850 ret = g_strdup (buf);
1852 if (sysctl(mib, 4, NULL, &size, NULL, 0) < 0)
1855 if ((pi = malloc(size)) == NULL)
1858 if (sysctl (mib, 4, pi, &size, NULL, 0) < 0) {
1859 if (errno == ENOMEM) {
1861 DEBUG ("%s: Didn't allocate enough memory for kproc info", __func__);
1866 if (strlen (pi->kp_proc.p_comm) > 0)
1867 ret = g_strdup (pi->kp_proc.p_comm);
1871 #elif defined(__OpenBSD__)
1873 mib [1] = KERN_PROC;
1874 mib [2] = KERN_PROC_PID;
1876 mib [4] = sizeof(struct kinfo_proc);
1880 if (sysctl(mib, 6, NULL, &size, NULL, 0) < 0)
1883 if ((pi = malloc(size)) == NULL)
1886 mib[5] = (int)(size / sizeof(struct kinfo_proc));
1888 if ((sysctl (mib, 6, pi, &size, NULL, 0) < 0) ||
1889 (size != sizeof (struct kinfo_proc))) {
1890 if (errno == ENOMEM) {
1897 if (strlen (pi->p_comm) > 0)
1898 ret = g_strdup (pi->p_comm);
1901 #elif defined(__HAIKU__)
1902 image_info imageInfo;
1905 if (get_next_image_info ((team_id)pid, &cookie, &imageInfo) == B_OK) {
1906 ret = g_strdup (imageInfo.name);
1909 memset (buf, '\0', sizeof(buf));
1910 filename = g_strdup_printf ("/proc/%d/exe", pid);
1911 if (readlink (filename, buf, 255) > 0) {
1912 ret = g_strdup (buf);
1920 filename = g_strdup_printf ("/proc/%d/cmdline", pid);
1921 if ((fp = fopen (filename, "r")) != NULL) {
1922 if (fgets (buf, 256, fp) != NULL) {
1923 ret = g_strdup (buf);
1934 filename = g_strdup_printf ("/proc/%d/stat", pid);
1935 if ((fp = fopen (filename, "r")) != NULL) {
1936 if (fgets (buf, 256, fp) != NULL) {
1939 start = strchr (buf, '(');
1940 if (start != NULL) {
1941 end = strchr (start + 1, ')');
1944 ret = g_strndup (start + 1,
1959 * wapi_process_get_path:
1961 * Return the full path of the executable of the process PID, or NULL if it cannot be determined.
1962 * Returns malloc-ed memory.
1965 wapi_process_get_path (pid_t pid)
1967 #if defined(PLATFORM_MACOSX) && !defined(__mono_ppc__) && defined(TARGET_OSX)
1968 char buf [PROC_PIDPATHINFO_MAXSIZE];
1971 res = proc_pidpath (pid, buf, sizeof (buf));
1974 if (buf [0] == '\0')
1976 return g_strdup (buf);
1978 return get_process_name_from_proc (pid);
1983 * wapi_process_set_cli_launcher:
1985 * Set the full path of the runtime executable used to launch managed exe's.
1988 wapi_process_set_cli_launcher (char *path)
1990 g_free (cli_launcher);
1991 cli_launcher = path ? g_strdup (path) : NULL;
1995 get_module_name (gpointer process, gpointer module,
1996 gunichar2 *basename, guint32 size,
1999 WapiHandle_process *process_handle;
2001 gunichar2 *procname;
2002 char *procname_ext = NULL;
2005 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
2008 GSList *mods = NULL;
2009 WapiProcModule *found_module;
2012 char *proc_name = NULL;
2014 DEBUG ("%s: Getting module base name, process handle %p module %p",
2015 __func__, process, module);
2017 size = size * sizeof (gunichar2); /* adjust for unicode characters */
2019 if (basename == NULL || size == 0)
2022 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
2023 /* This is a pseudo handle */
2024 pid = (pid_t)WAPI_HANDLE_TO_PID (process);
2025 proc_name = get_process_name_from_proc (pid);
2027 process_handle = lookup_process_handle (process);
2028 if (!process_handle) {
2029 DEBUG ("%s: Can't find process %p", __func__,
2034 pid = process_handle->id;
2035 proc_name = g_strdup (process_handle->proc_name);
2038 /* Look up the address in /proc/<pid>/maps */
2039 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
2040 mods = load_modules ();
2042 fp = open_process_map (pid, "r");
2044 if (errno == EACCES && module == NULL && base == TRUE) {
2045 procname_ext = get_process_name_from_proc (pid);
2047 /* No /proc/<pid>/maps, so just return failure
2054 mods = load_modules (fp);
2058 count = g_slist_length (mods);
2060 /* If module != NULL compare the address.
2061 * If module == NULL we are looking for the main module.
2062 * The best we can do for now check it the module name end with the process name.
2064 for (i = 0; i < count; i++) {
2065 found_module = (WapiProcModule *)g_slist_nth_data (mods, i);
2066 if (procname_ext == NULL &&
2067 ((module == NULL && match_procname_to_modulename (proc_name, found_module->filename)) ||
2068 (module != NULL && found_module->address_start == module))) {
2070 procname_ext = g_path_get_basename (found_module->filename);
2072 procname_ext = g_strdup (found_module->filename);
2075 free_procmodule (found_module);
2078 if (procname_ext == NULL) {
2079 /* If it's *still* null, we might have hit the
2080 * case where reading /proc/$pid/maps gives an
2081 * empty file for this user.
2083 procname_ext = get_process_name_from_proc (pid);
2086 g_slist_free (mods);
2090 DEBUG ("%s: Process name is [%s]", __func__,
2093 procname = mono_unicode_from_external (procname_ext, &bytes);
2094 if (procname == NULL) {
2096 g_free (procname_ext);
2102 /* Add the terminator */
2106 DEBUG ("%s: Size %d smaller than needed (%ld); truncating", __func__, size, bytes);
2108 memcpy (basename, procname, size);
2110 DEBUG ("%s: Size %d larger than needed (%ld)",
2111 __func__, size, bytes);
2113 memcpy (basename, procname, bytes);
2117 g_free (procname_ext);
2126 GetModuleBaseName (gpointer process, gpointer module,
2127 gunichar2 *basename, guint32 size)
2129 return get_module_name (process, module, basename, size, TRUE);
2133 GetModuleFileNameEx (gpointer process, gpointer module,
2134 gunichar2 *filename, guint32 size)
2136 return get_module_name (process, module, filename, size, FALSE);
2140 GetModuleInformation (gpointer process, gpointer module,
2141 WapiModuleInfo *modinfo, guint32 size)
2143 WapiHandle_process *process_handle;
2145 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
2148 GSList *mods = NULL;
2149 WapiProcModule *found_module;
2152 gboolean ret = FALSE;
2153 char *proc_name = NULL;
2155 DEBUG ("%s: Getting module info, process handle %p module %p",
2156 __func__, process, module);
2158 if (modinfo == NULL || size < sizeof (WapiModuleInfo))
2161 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
2162 pid = (pid_t)WAPI_HANDLE_TO_PID (process);
2163 proc_name = get_process_name_from_proc (pid);
2165 process_handle = lookup_process_handle (process);
2166 if (!process_handle) {
2167 DEBUG ("%s: Can't find process %p", __func__,
2172 pid = process_handle->id;
2173 proc_name = g_strdup (process_handle->proc_name);
2176 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
2177 mods = load_modules ();
2179 /* Look up the address in /proc/<pid>/maps */
2180 if ((fp = open_process_map (pid, "r")) == NULL) {
2181 /* No /proc/<pid>/maps, so just return failure
2187 mods = load_modules (fp);
2190 count = g_slist_length (mods);
2192 /* If module != NULL compare the address.
2193 * If module == NULL we are looking for the main module.
2194 * The best we can do for now check it the module name end with the process name.
2196 for (i = 0; i < count; i++) {
2197 found_module = (WapiProcModule *)g_slist_nth_data (mods, i);
2199 ((module == NULL && match_procname_to_modulename (proc_name, found_module->filename)) ||
2200 (module != NULL && found_module->address_start == module))) {
2201 modinfo->lpBaseOfDll = found_module->address_start;
2202 modinfo->SizeOfImage = (gsize)(found_module->address_end) - (gsize)(found_module->address_start);
2203 modinfo->EntryPoint = found_module->address_offset;
2207 free_procmodule (found_module);
2210 g_slist_free (mods);
2217 GetProcessWorkingSetSize (gpointer process, size_t *min, size_t *max)
2219 WapiHandle_process *process_handle;
2221 if (min == NULL || max == NULL)
2222 /* Not sure if w32 allows NULLs here or not */
2225 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process))
2226 /* This is a pseudo handle, so just fail for now */
2229 process_handle = lookup_process_handle (process);
2230 if (!process_handle) {
2231 DEBUG ("%s: Can't find process %p", __func__, process);
2236 *min = process_handle->min_working_set;
2237 *max = process_handle->max_working_set;
2243 SetProcessWorkingSetSize (gpointer process, size_t min, size_t max)
2245 WapiHandle_process *process_handle;
2247 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process))
2248 /* This is a pseudo handle, so just fail for now
2252 process_handle = lookup_process_handle (process);
2253 if (!process_handle) {
2254 DEBUG ("%s: Can't find process %p", __func__, process);
2259 process_handle->min_working_set = min;
2260 process_handle->max_working_set = max;
2267 TerminateProcess (gpointer process, gint32 exitCode)
2269 WapiHandle_process *process_handle;
2274 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
2275 /* This is a pseudo handle */
2276 pid = (pid_t)WAPI_HANDLE_TO_PID (process);
2278 process_handle = lookup_process_handle (process);
2279 if (!process_handle) {
2280 DEBUG ("%s: Can't find process %p", __func__, process);
2281 SetLastError (ERROR_INVALID_HANDLE);
2284 pid = process_handle->id;
2287 signo = (exitCode == -1) ? SIGKILL : SIGTERM;
2288 ret = kill (pid, signo);
2292 SetLastError (ERROR_INVALID_PARAMETER);
2295 SetLastError (ERROR_ACCESS_DENIED);
2298 SetLastError (ERROR_PROC_NOT_FOUND);
2301 SetLastError (ERROR_GEN_FAILURE);
2309 GetPriorityClass (gpointer process)
2311 #ifdef HAVE_GETPRIORITY
2312 WapiHandle_process *process_handle;
2316 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
2317 /* This is a pseudo handle */
2318 pid = (pid_t)WAPI_HANDLE_TO_PID (process);
2320 process_handle = lookup_process_handle (process);
2321 if (!process_handle) {
2322 SetLastError (ERROR_INVALID_HANDLE);
2325 pid = process_handle->id;
2329 ret = getpriority (PRIO_PROCESS, pid);
2330 if (ret == -1 && errno != 0) {
2334 SetLastError (ERROR_ACCESS_DENIED);
2337 SetLastError (ERROR_PROC_NOT_FOUND);
2340 SetLastError (ERROR_GEN_FAILURE);
2346 return NORMAL_PRIORITY_CLASS;
2348 return REALTIME_PRIORITY_CLASS;
2350 return HIGH_PRIORITY_CLASS;
2352 return ABOVE_NORMAL_PRIORITY_CLASS;
2354 return IDLE_PRIORITY_CLASS;
2356 return BELOW_NORMAL_PRIORITY_CLASS;
2358 return NORMAL_PRIORITY_CLASS;
2360 SetLastError (ERROR_NOT_SUPPORTED);
2366 SetPriorityClass (gpointer process, guint32 priority_class)
2368 #ifdef HAVE_SETPRIORITY
2369 WapiHandle_process *process_handle;
2374 if (WAPI_IS_PSEUDO_PROCESS_HANDLE (process)) {
2375 /* This is a pseudo handle */
2376 pid = (pid_t)WAPI_HANDLE_TO_PID (process);
2378 process_handle = lookup_process_handle (process);
2379 if (!process_handle) {
2380 SetLastError (ERROR_INVALID_HANDLE);
2383 pid = process_handle->id;
2386 switch (priority_class) {
2387 case IDLE_PRIORITY_CLASS:
2390 case BELOW_NORMAL_PRIORITY_CLASS:
2393 case NORMAL_PRIORITY_CLASS:
2396 case ABOVE_NORMAL_PRIORITY_CLASS:
2399 case HIGH_PRIORITY_CLASS:
2402 case REALTIME_PRIORITY_CLASS:
2406 SetLastError (ERROR_INVALID_PARAMETER);
2410 ret = setpriority (PRIO_PROCESS, pid, prio);
2415 SetLastError (ERROR_ACCESS_DENIED);
2418 SetLastError (ERROR_PROC_NOT_FOUND);
2421 SetLastError (ERROR_GEN_FAILURE);
2427 SetLastError (ERROR_NOT_SUPPORTED);
2433 mono_processes_cleanup (void)
2435 struct MonoProcess *mp;
2436 struct MonoProcess *prev = NULL;
2437 GSList *finished = NULL;
2439 gpointer unref_handle;
2441 DEBUG ("%s", __func__);
2443 /* Ensure we're not in here in multiple threads at once, nor recursive. */
2444 if (InterlockedCompareExchange (&mono_processes_cleaning_up, 1, 0) != 0)
2447 for (mp = mono_processes; mp; mp = mp->next) {
2448 if (mp->pid == 0 && mp->handle) {
2449 /* This process has exited and we need to remove the artifical ref
2451 mono_mutex_lock (&mono_processes_mutex);
2452 unref_handle = mp->handle;
2454 mono_mutex_unlock (&mono_processes_mutex);
2456 _wapi_handle_unref (unref_handle);
2461 * Remove processes which exited from the mono_processes list.
2462 * We need to synchronize with the sigchld handler here, which runs
2463 * asynchronously. The handler requires that the mono_processes list
2466 mono_mutex_lock (&mono_processes_mutex);
2468 mp = mono_processes;
2470 if (mp->handle_count == 0 && mp->freeable) {
2473 * This code can run parallel with the sigchld handler, but the
2474 * modifications it makes are safe.
2476 if (mp == mono_processes) {
2477 mono_processes = mp->next;
2479 if (mp == mono_processes) {
2480 mono_processes = mp->next;
2482 prev->next = mp->next;
2486 finished = g_slist_prepend (finished, mp);
2490 mono_memory_barrier ();
2492 for (l = finished; l; l = l->next) {
2494 * All the entries in the finished list are unlinked from mono_processes, and
2495 * they have the 'finished' flag set, which means the sigchld handler is done
2499 MONO_SEM_DESTROY (&mp->exit_sem);
2502 g_slist_free (finished);
2504 mono_mutex_lock (&mono_processes_mutex);
2506 DEBUG ("%s done", __func__);
2508 InterlockedDecrement (&mono_processes_cleaning_up);
2512 process_close (gpointer handle, gpointer data)
2514 WapiHandle_process *process_handle;
2516 DEBUG ("%s", __func__);
2518 process_handle = (WapiHandle_process *) data;
2519 g_free (process_handle->proc_name);
2520 process_handle->proc_name = NULL;
2521 if (process_handle->mono_process)
2522 InterlockedDecrement (&process_handle->mono_process->handle_count);
2523 mono_processes_cleanup ();
2527 MONO_SIGNAL_HANDLER_FUNC (static, mono_sigchld_signal_handler, (int _dummy, siginfo_t *info, void *context))
2531 struct MonoProcess *p;
2533 DEBUG ("SIG CHILD handler for pid: %i\n", info->si_pid);
2537 pid = waitpid (-1, &status, WNOHANG);
2538 } while (pid == -1 && errno == EINTR);
2543 DEBUG ("child ended: %i", pid);
2546 * This can run concurrently with the code in the rest of this module.
2548 for (p = mono_processes; p; p = p->next) {
2549 if (p->pid == pid) {
2554 p->pid = 0; /* this pid doesn't exist anymore, clear it */
2556 MONO_SEM_POST (&p->exit_sem);
2557 mono_memory_barrier ();
2558 /* Mark this as freeable, the pointer becomes invalid afterwards */
2563 DEBUG ("SIG CHILD handler: done looping.");
2569 process_add_sigchld_handler (void)
2572 struct sigaction sa;
2574 sa.sa_sigaction = mono_sigchld_signal_handler;
2575 sigemptyset (&sa.sa_mask);
2576 sa.sa_flags = SA_NOCLDSTOP | SA_SIGINFO;
2577 g_assert (sigaction (SIGCHLD, &sa, &previous_chld_sa) != -1);
2578 DEBUG ("Added SIGCHLD handler");
2583 process_wait (gpointer handle, guint32 timeout, gboolean alertable)
2585 WapiHandle_process *process_handle;
2586 pid_t pid G_GNUC_UNUSED, ret;
2590 struct MonoProcess *mp;
2592 /* FIXME: We can now easily wait on processes that aren't our own children,
2593 * but WaitFor*Object won't call us for pseudo handles. */
2594 g_assert ((GPOINTER_TO_UINT (handle) & _WAPI_PROCESS_UNHANDLED) != _WAPI_PROCESS_UNHANDLED);
2596 DEBUG ("%s (%p, %u)", __func__, handle, timeout);
2598 process_handle = lookup_process_handle (handle);
2599 if (!process_handle) {
2600 g_warning ("%s: error looking up process handle %p", __func__, handle);
2604 if (process_handle->exited) {
2605 /* We've already done this one */
2606 DEBUG ("%s (%p, %u): Process already exited", __func__, handle, timeout);
2607 return WAIT_OBJECT_0;
2610 pid = process_handle->id;
2612 DEBUG ("%s (%p, %u): PID: %d", __func__, handle, timeout, pid);
2614 /* We don't need to lock mono_processes here, the entry
2615 * has a handle_count > 0 which means it will not be freed. */
2616 mp = process_handle->mono_process;
2619 start = mono_msec_ticks ();
2623 if (timeout != INFINITE) {
2624 DEBUG ("%s (%p, %u): waiting on semaphore for %li ms...",
2625 __func__, handle, timeout, (timeout - (now - start)));
2627 ret = MONO_SEM_TIMEDWAIT_ALERTABLE (&mp->exit_sem, (timeout - (now - start)), alertable);
2629 DEBUG ("%s (%p, %u): waiting on semaphore forever...",
2630 __func__, handle, timeout);
2631 ret = MONO_SEM_WAIT_ALERTABLE (&mp->exit_sem, alertable);
2634 if (ret == -1 && errno != EINTR && errno != ETIMEDOUT) {
2635 DEBUG ("%s (%p, %u): sem_timedwait failure: %s",
2636 __func__, handle, timeout, g_strerror (errno));
2637 /* Should we return a failure here? */
2641 /* Success, process has exited */
2642 MONO_SEM_POST (&mp->exit_sem);
2647 DEBUG ("%s (%p, %u): WAIT_TIMEOUT (timeout = 0)", __func__, handle, timeout);
2648 return WAIT_TIMEOUT;
2651 now = mono_msec_ticks ();
2652 if (now - start >= timeout) {
2653 DEBUG ("%s (%p, %u): WAIT_TIMEOUT", __func__, handle, timeout);
2654 return WAIT_TIMEOUT;
2657 if (alertable && _wapi_thread_cur_apc_pending ()) {
2658 DEBUG ("%s (%p, %u): WAIT_IO_COMPLETION", __func__, handle, timeout);
2659 return WAIT_IO_COMPLETION;
2663 /* Process must have exited */
2664 DEBUG ("%s (%p, %u): Waited successfully", __func__, handle, timeout);
2666 ret = _wapi_handle_lock_shared_handles ();
2667 g_assert (ret == 0);
2669 status = mp ? mp->status : 0;
2670 if (WIFSIGNALED (status))
2671 process_handle->exitstatus = 128 + WTERMSIG (status);
2673 process_handle->exitstatus = WEXITSTATUS (status);
2674 _wapi_time_t_to_filetime (time (NULL), &process_handle->exit_time);
2676 process_handle->exited = TRUE;
2678 DEBUG ("%s (%p, %u): Setting pid %d signalled, exit status %d",
2679 __func__, handle, timeout, process_handle->id, process_handle->exitstatus);
2681 _wapi_handle_set_signal_state (handle, TRUE, TRUE);
2683 _wapi_handle_unlock_shared_handles ();
2685 return WAIT_OBJECT_0;
2689 wapi_processes_cleanup (void)
2691 g_free (cli_launcher);