summaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/os/os_process.c
blob: 87072f0b0462c5ca3d198e5e2a608abb240caebe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
/**************************************************************************
 *
 * Copyright 2013 VMware, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/


#include "pipe/p_config.h"
#include "os/os_process.h"
#include "util/u_memory.h"
#include "util/process.h"

#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
#  include <windows.h>
#elif defined(PIPE_OS_HAIKU)
#  include <kernel/OS.h>
#  include <kernel/image.h>
#endif

#if defined(PIPE_OS_LINUX)
#  include <fcntl.h>
#endif


/**
 * Return the name of the current process.
 * \param procname  returns the process name
 * \param size  size of the procname buffer
 * \return  TRUE or FALSE for success, failure
 */
boolean
os_get_process_name(char *procname, size_t size)
{
   const char *name;

   /* First, check if the GALLIUM_PROCESS_NAME env var is set to
    * override the normal process name query.
    */
   name = os_get_option("GALLIUM_PROCESS_NAME");

   if (!name) {
      /* do normal query */

#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
      char szProcessPath[MAX_PATH];
      char *lpProcessName;
      char *lpProcessExt;

      GetModuleFileNameA(NULL, szProcessPath, ARRAY_SIZE(szProcessPath));

      lpProcessName = strrchr(szProcessPath, '\\');
      lpProcessName = lpProcessName ? lpProcessName + 1 : szProcessPath;

      lpProcessExt = strrchr(lpProcessName, '.');
      if (lpProcessExt) {
         *lpProcessExt = '\0';
      }

      name = lpProcessName;

#elif defined(PIPE_OS_HAIKU)
      image_info info;
      get_image_info(B_CURRENT_TEAM, &info);
      name = info.name;
#else
      name = util_get_process_name();
#endif
   }

   assert(size > 0);
   assert(procname);

   if (name && procname && size > 0) {
      strncpy(procname, name, size);
      procname[size - 1] = '\0';
      return TRUE;
   }
   else {
      return FALSE;
   }
}


/**
 * Return the command line for the calling process.  This is basically
 * the argv[] array with the arguments separated by spaces.
 * \param cmdline  returns the command line string
 * \param size  size of the cmdline buffer
 * \return  TRUE or FALSE for success, failure
 */
boolean
os_get_command_line(char *cmdline, size_t size)
{
#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
   const char *args = GetCommandLine();
   if (args) {
      strncpy(cmdline, args, size);
      // make sure we terminate the string
      cmdline[size - 1] = 0;
      return TRUE;
   }
#elif defined(PIPE_OS_LINUX)
   int f = open("/proc/self/cmdline", O_RDONLY);
   if (f) {
      const int n = read(f, cmdline, size - 1);
      int i;
      assert(n < size);
      // The arguments are separated by '\0' chars.  Convert them to spaces.
      for (i = 0; i < n; i++) {
         if (cmdline[i] == 0) {
            cmdline[i] = ' ';
         }
      }
      // terminate the string
      cmdline[n] = 0;
      close(f);
      return TRUE;
   }
#endif

   /* XXX to-do: implement this function for other operating systems */

   cmdline[0] = 0;
   return FALSE;
}