mono/handles/scratch.c

   1 #include <config.h>
   2 #include <glib.h>
   3 #include <unistd.h>
   4
   5 #include <mono/io-layer/io-layer.h>
   6
   7 /* We're digging into handle internals here... */
   8 #include <mono/io-layer/handles-private.h>
   9 #include <mono/io-layer/wapi-private.h>
  10
  11 #define HDRSIZE sizeof(struct _WapiScratchHeader)
  12
  13 static guchar *printable (guchar *data, guint32 datalen)
  14 {
  15         static guchar buf[32];
  16         guint32 i;
  17
  18         if(datalen>=32) {
  19                 datalen=31;
  20         }
  21
  22         for(i=0; i<datalen; i++) {
  23                 if(g_ascii_isprint (data[i])) {
  24                         buf[i]=data[i];
  25                 } else {
  26                         buf[i]='.';
  27                 }
  28         }
  29         buf[i]='\0';
  30
  31         return(buf);
  32 }
  33
  34 int main (int argc, char **argv)
  35 {
  36         guint32 idx=0;
  37         struct _WapiScratchHeader *hdr;
  38
  39         _wapi_shared_data=_wapi_shm_attach (FALSE);
  40
  41         hdr=(struct _WapiScratchHeader *)&_wapi_shared_data->scratch_base[0];
  42         if(hdr->flags==0 && hdr->length==0) {
  43                 g_print ("Scratch space unused\n");
  44                 exit (0);
  45         }
  46
  47         while(idx < _WAPI_SHM_SCRATCH_SIZE) {
  48                 hdr=(struct _WapiScratchHeader *)&_wapi_shared_data->scratch_base[idx];
  49                 if(hdr->flags & WAPI_SHM_SCRATCH_FREE) {
  50                         g_print ("Free block at %6d (index %6d), length %6d\n",
  51                                  idx, idx+HDRSIZE, hdr->length);
  52                 } else {
  53                         guchar *data=&_wapi_shared_data->scratch_base[idx+HDRSIZE];
  54
  55                         g_print ("Used block at %6d (index %6d), length %6d, [%s]\n",
  56                                  idx, idx+HDRSIZE, hdr->length,
  57                                  printable (data, hdr->length));
  58                 }
  59
  60                 idx+=(hdr->length+HDRSIZE);
  61         }
  62
  63         exit (0);
  64 }