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authorAllen Byrne <byrn@hdfgroup.org>2017-03-29 14:09:51 (GMT)
committerAllen Byrne <byrn@hdfgroup.org>2017-03-29 14:09:51 (GMT)
commit4e11e6dd375c26f2dcd35a5b55c7e7fd76069891 (patch)
tree01a25d24bbeee61b3b872915ae89543a0fac5b47 /src
parent7fd79abc0c10002af5f556b4ad4c8a12c5e81beb (diff)
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HDFFV-9655 - Add functions for '@' - untested
Diffstat (limited to 'src')
-rw-r--r--src/H5PL.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/H5PL.c b/src/H5PL.c
index 898e84b..79aa156 100644
--- a/src/H5PL.c
+++ b/src/H5PL.c
@@ -104,6 +104,13 @@ typedef const void *(*H5PL_get_plugin_info_t)(void);
/* Special symbol to indicate no plugin loading */
#define H5PL_NO_PLUGIN "::"
+/* Special symbol to indicate relative path from environment */
+#define H5PL_PLUGIN_ENV_SPECIALCHAR '@'
+
+/* Maximum size for path to executable */
+#ifndef MAX_EXEC_PATH
+#define MAX_EXEC_PATH 2048
+#endif
/******************/
/* Local Typedefs */
@@ -154,6 +161,7 @@ static H5PL_table_t *H5PL_table_g = NULL;
static char *H5PL_path_table_g[H5PL_MAX_PATH_NUM];
static size_t H5PL_num_paths_g = 0;
static hbool_t H5PL_path_found_g = FALSE;
+static char *H5PL_executable_path_g = NULL;
/* Enable all plugin libraries */
static unsigned int H5PL_plugin_g = H5PL_ALL_PLUGIN;
@@ -175,6 +183,7 @@ herr_t
H5PL__init_package(void)
{
char *preload_path;
+ char *tempbuf;
FUNC_ENTER_PACKAGE_NOERR
@@ -186,6 +195,36 @@ H5PL__init_package(void)
if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN))
H5PL_plugin_g = 0;
+ /* Retrieve the executable path for use with H5PL_PLUGIN_ENV_SPECIALCHAR
+ * if the user uses it in a plugin path.
+ */
+ if(NULL == (tempbuf = (char *)H5MM_malloc(MAX_EXEC_PATH)))
+ HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "can't allocate memory for executable path")
+#if defined(_WIN32) || defined(_WIN64) || defined(H5_HAVE_WIN32_API)
+ const char PathSep = '\\';
+ GetModuleFileName(NULL, tempbuf, MAX_EXEC_PATH);
+#elif defined(__APPLE__)
+ const char PathSep = '/';
+ uint32_t size = sizeof(result);
+ _NSGetExecutablePath(tempbuf, &size);
+#else
+ const char PathSep = '/';
+ {
+ ssize_t count = readlink("/proc/self/exe", tempbuf, MAX_EXEC_PATH);
+ tempbuf[count] = '\0';
+ }
+#endif
+ {
+ char *bs = strrchr(tempbuf, PathSep);
+ size_t ncopy = MAX_EXEC_PATH;
+ if (bs)
+ ncopy = bs - tempbuf;
+ tempbuf[ncopy] = '\0';
+ }
+ H5PL_executable_path_g = H5MM_strdup(tempbuf);
+ if(tempbuf)
+ tempbuf = (char *)H5MM_xfree(tempbuf);
+
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5PL__init_package() */
@@ -239,6 +278,10 @@ H5PL_term_package(void)
n++;
} /* end if */
+ /* Free the executable path */
+ if(H5PL_executable_path_g)
+ H5PL_executable_path_g = (char *)H5MM_xfree(H5PL_executable_path_g);
+
/* Mark the interface as uninitialized */
if(0 == n)
H5_PKG_INIT_VAR = FALSE;
@@ -247,6 +290,31 @@ H5PL_term_package(void)
FUNC_LEAVE_NOAPI(n)
} /* end H5PL_term_package() */
+static char*
+H5PL_env_strdup(const char *plpath)
+{
+ char *dl_path = NULL;
+ if(NULL == plpath)
+ HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "no path provided")
+ if (*plpath == H5PL_PLUGIN_ENV_SPECIALCHAR) {
+ char *tempbuf;
+ int ExecPathLength = strlen(H5PL_executable_path_g);
+ int PluginPathLength = strlen(plpath);
+
+ if(NULL == (tempbuf = (char *)H5MM_malloc(ExecPathLength + PluginPathLength)))
+ HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "can't allocate memory for plugin path")
+
+ HDstrncpy(tempbuf, H5PL_executable_path_g, ExecPathLength);
+ HDstrncpy(tempbuf+ExecPathLength, s+1, PluginPathLength-1);
+ tempbuf[ExecPathLength + PluginPathLength] = '\0';
+ dl_path = H5MM_strdup(tempbuf);
+ tempbuf = (char *)H5MM_xfree(tempbuf);
+ }
+ else
+ dl_path = H5MM_strdup(plpath);
+ return dl_path;
+} /* end H5PL_env_strdup() */
+
/*-------------------------------------------------------------------------
* Function: H5PLset_loading_state