util/list: Add a list pair iterator

[mesa.git] / src / util / u_process.c

diff --git a/src/util/u_process.c b/src/util/u_process.c
index b9328d58da401e98d397d3e21746f6af3fa89e9e..74c4d10192ef34eb7a388ff9b7e583ef66d1038e 100644 (file)
--- a/src/util/u_process.c
+++ b/src/util/u_process.c
@@ -26,12 +26,24 @@
  */
 
 #include "u_process.h"
+#include "detect_os.h"
+#include "macros.h"
 #include <string.h>
 #include <errno.h>
 #include <stdlib.h>
 
 #undef GET_PROGRAM_NAME
 
+#if DETECT_OS_WINDOWS
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
+#if DETECT_OS_APPLE
+#include <mach-o/dyld.h>
+#endif
+
 #if defined(__linux__) && defined(HAVE_PROGRAM_INVOCATION_NAME)
 
 static char *path = NULL;
@@ -152,3 +164,32 @@ util_get_process_name(void)
 {
    return GET_PROGRAM_NAME();
 }
+
+size_t
+util_get_process_exec_path(char* process_path, size_t len)
+{
+#if DETECT_OS_WINDOWS
+   return GetModuleFileNameA(NULL, process_path, len);
+#elif DETECT_OS_APPLE
+   uint32_t bufSize = len;
+   int result = _NSGetExecutablePath(process_path, &bufSize);
+
+   return (result == 0) ? strlen(process_path) : 0;
+#elif DETECT_OS_UNIX
+   ssize_t r;
+
+   if ((r = readlink("/proc/self/exe", process_path, len)) > 0)
+      goto success;
+   if ((r = readlink("/proc/curproc/exe", process_path, len)) > 0)
+      goto success;
+   if ((r = readlink("/proc/curproc/file", process_path, len)) > 0)
+      goto success;
+
+    return 0;
+success:
+    process_path[r] = '\0';
+    return r;
+
+#endif
+   return 0;
+}