2 * Copyright 2001-2003 Ximian, Inc
3 * Copyright 2003-2010 Novell, Inc.
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13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
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29 #include "sgen-protocol.h"
30 #include "sgen-memory-governor.h"
31 #include "utils/mono-mmap.h"
33 #ifdef SGEN_BINARY_PROTOCOL
35 /* If not null, dump binary protocol to this file */
36 static FILE *binary_protocol_file = NULL;
38 static int binary_protocol_use_count = 0;
40 #define BINARY_PROTOCOL_BUFFER_SIZE (65536 - 2 * 8)
42 typedef struct _BinaryProtocolBuffer BinaryProtocolBuffer;
43 struct _BinaryProtocolBuffer {
44 BinaryProtocolBuffer *next;
46 unsigned char buffer [BINARY_PROTOCOL_BUFFER_SIZE];
49 static BinaryProtocolBuffer *binary_protocol_buffers = NULL;
52 binary_protocol_init (const char *filename)
54 binary_protocol_file = fopen (filename, "w");
58 binary_protocol_is_enabled (void)
60 return binary_protocol_file != NULL;
64 binary_protocol_flush_buffers_rec (BinaryProtocolBuffer *buffer)
69 binary_protocol_flush_buffers_rec (buffer->next);
71 g_assert (buffer->index > 0);
72 fwrite (buffer->buffer, 1, buffer->index, binary_protocol_file);
74 sgen_free_os_memory (buffer, sizeof (BinaryProtocolBuffer), SGEN_ALLOC_INTERNAL);
78 binary_protocol_flush_buffers (gboolean force)
80 if (!binary_protocol_file)
83 if (!force && binary_protocol_use_count != 0)
86 binary_protocol_flush_buffers_rec (binary_protocol_buffers);
87 binary_protocol_buffers = NULL;
89 fflush (binary_protocol_file);
92 static BinaryProtocolBuffer*
93 binary_protocol_get_buffer (int length)
95 BinaryProtocolBuffer *buffer, *new_buffer;
98 buffer = binary_protocol_buffers;
99 if (buffer && buffer->index + length <= BINARY_PROTOCOL_BUFFER_SIZE)
102 new_buffer = sgen_alloc_os_memory (sizeof (BinaryProtocolBuffer), SGEN_ALLOC_INTERNAL | SGEN_ALLOC_ACTIVATE, "debugging memory");
103 new_buffer->next = buffer;
104 new_buffer->index = 0;
106 if (InterlockedCompareExchangePointer ((void**)&binary_protocol_buffers, new_buffer, buffer) != buffer) {
107 sgen_free_os_memory (new_buffer, sizeof (BinaryProtocolBuffer), SGEN_ALLOC_INTERNAL);
116 protocol_entry (unsigned char type, gpointer data, int size)
119 BinaryProtocolBuffer *buffer;
122 if (!binary_protocol_file)
126 old_count = binary_protocol_use_count;
127 g_assert (old_count >= 0);
128 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count + 1, old_count) != old_count);
131 buffer = binary_protocol_get_buffer (size + 1);
133 index = buffer->index;
134 if (index + 1 + size > BINARY_PROTOCOL_BUFFER_SIZE)
137 if (InterlockedCompareExchange (&buffer->index, index + 1 + size, index) != index)
138 goto retry_same_buffer;
140 /* FIXME: if we're interrupted at this point, we have a buffer
141 entry that contains random data. */
143 buffer->buffer [index++] = type;
144 memcpy (buffer->buffer + index, data, size);
147 g_assert (index <= BINARY_PROTOCOL_BUFFER_SIZE);
150 old_count = binary_protocol_use_count;
151 g_assert (old_count > 0);
152 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count - 1, old_count) != old_count);
156 binary_protocol_collection (int index, int generation)
158 SGenProtocolCollection entry = { index, generation };
159 binary_protocol_flush_buffers (FALSE);
160 protocol_entry (SGEN_PROTOCOL_COLLECTION, &entry, sizeof (SGenProtocolCollection));
164 binary_protocol_alloc (gpointer obj, gpointer vtable, int size)
166 SGenProtocolAlloc entry = { obj, vtable, size };
167 protocol_entry (SGEN_PROTOCOL_ALLOC, &entry, sizeof (SGenProtocolAlloc));
171 binary_protocol_alloc_pinned (gpointer obj, gpointer vtable, int size)
173 SGenProtocolAlloc entry = { obj, vtable, size };
174 protocol_entry (SGEN_PROTOCOL_ALLOC_PINNED, &entry, sizeof (SGenProtocolAlloc));
178 binary_protocol_alloc_degraded (gpointer obj, gpointer vtable, int size)
180 SGenProtocolAlloc entry = { obj, vtable, size };
181 protocol_entry (SGEN_PROTOCOL_ALLOC_DEGRADED, &entry, sizeof (SGenProtocolAlloc));
185 binary_protocol_copy (gpointer from, gpointer to, gpointer vtable, int size)
187 SGenProtocolCopy entry = { from, to, vtable, size };
188 protocol_entry (SGEN_PROTOCOL_COPY, &entry, sizeof (SGenProtocolCopy));
192 binary_protocol_pin (gpointer obj, gpointer vtable, int size)
194 SGenProtocolPin entry = { obj, vtable, size };
195 protocol_entry (SGEN_PROTOCOL_PIN, &entry, sizeof (SGenProtocolPin));
199 binary_protocol_mark (gpointer obj, gpointer vtable, int size)
201 SGenProtocolMark entry = { obj, vtable, size };
202 protocol_entry (SGEN_PROTOCOL_MARK, &entry, sizeof (SGenProtocolMark));
206 binary_protocol_wbarrier (gpointer ptr, gpointer value, gpointer value_vtable)
208 SGenProtocolWBarrier entry = { ptr, value, value_vtable };
209 protocol_entry (SGEN_PROTOCOL_WBARRIER, &entry, sizeof (SGenProtocolWBarrier));
213 binary_protocol_global_remset (gpointer ptr, gpointer value, gpointer value_vtable)
215 SGenProtocolGlobalRemset entry = { ptr, value, value_vtable };
216 protocol_entry (SGEN_PROTOCOL_GLOBAL_REMSET, &entry, sizeof (SGenProtocolGlobalRemset));
220 binary_protocol_ptr_update (gpointer ptr, gpointer old_value, gpointer new_value, gpointer vtable, int size)
222 SGenProtocolPtrUpdate entry = { ptr, old_value, new_value, vtable, size };
223 protocol_entry (SGEN_PROTOCOL_PTR_UPDATE, &entry, sizeof (SGenProtocolPtrUpdate));
227 binary_protocol_cleanup (gpointer ptr, gpointer vtable, int size)
229 SGenProtocolCleanup entry = { ptr, vtable, size };
230 protocol_entry (SGEN_PROTOCOL_CLEANUP, &entry, sizeof (SGenProtocolCleanup));
234 binary_protocol_empty (gpointer start, int size)
236 SGenProtocolEmpty entry = { start, size };
237 protocol_entry (SGEN_PROTOCOL_EMPTY, &entry, sizeof (SGenProtocolEmpty));
241 binary_protocol_thread_suspend (gpointer thread, gpointer stopped_ip)
243 SGenProtocolThreadSuspend entry = { thread, stopped_ip };
244 protocol_entry (SGEN_PROTOCOL_THREAD_SUSPEND, &entry, sizeof (SGenProtocolThreadSuspend));
248 binary_protocol_thread_restart (gpointer thread)
250 SGenProtocolThreadRestart entry = { thread };
251 protocol_entry (SGEN_PROTOCOL_THREAD_RESTART, &entry, sizeof (SGenProtocolThreadRestart));
255 binary_protocol_thread_register (gpointer thread)
257 SGenProtocolThreadRegister entry = { thread };
258 protocol_entry (SGEN_PROTOCOL_THREAD_REGISTER, &entry, sizeof (SGenProtocolThreadRegister));
263 binary_protocol_thread_unregister (gpointer thread)
265 SGenProtocolThreadUnregister entry = { thread };
266 protocol_entry (SGEN_PROTOCOL_THREAD_UNREGISTER, &entry, sizeof (SGenProtocolThreadUnregister));
271 binary_protocol_missing_remset (gpointer obj, gpointer obj_vtable, int offset, gpointer value, gpointer value_vtable, int value_pinned)
273 SGenProtocolMissingRemset entry = { obj, obj_vtable, offset, value, value_vtable, value_pinned };
274 protocol_entry (SGEN_PROTOCOL_MISSING_REMSET, &entry, sizeof (SGenProtocolMissingRemset));
280 #endif /* HAVE_SGEN_GC */