experiments/clixon
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common plugin code, removed clixon_proc.c

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This commit is contained in:
Olof hagsand 2017-04-12 22:39:01 +02:00
parent 2758a30bb7
commit 85af4342dc
13 changed files with 142 additions and 542 deletions
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54
apps/backend/backend_plugin.c
View file

@ -152,8 +152,8 @@ config_plugin_init(clicon_handle h)
* @retval -1 Error
*/
static int
plugin_unload(clicon_handle h,
struct plugin *plg)
backend_plugin_unload(clicon_handle h,
struct plugin *plg)
{
char *error;
@ -182,37 +182,16 @@ plugin_unload(clicon_handle h,
* @retval NULL Error
*/
static struct plugin *
plugin_load (clicon_handle h,
char *file,
int dlflags)
backend_plugin_load (clicon_handle h,
char *file,
int dlflags)
{
char *error;
void *handle;
char *name;
struct plugin *new;
plginit_t *initfun;
dlerror(); /* Clear any existing error */
if ((handle = dlopen (file, dlflags)) == NULL) {
error = (char*)dlerror();
clicon_err(OE_UNIX, 0, "dlopen: %s", error?error:"Unknown error");
return NULL;
}
initfun = dlsym(handle, PLUGIN_INIT);
if ((error = (char*)dlerror()) != NULL) {
clicon_err(OE_UNIX, 0, "dlsym: %s: %s", file, error);
return NULL;
}
if (initfun(h) != 0) {
dlclose(handle);
if (!clicon_errno) /* sanity: log if clicon_err() is not called ! */
clicon_err(OE_DB, 0, "Unknown error: %s: plugin_init does not make clicon_err call on error",
file);
return NULL;
}
struct plugin *new = NULL;
if ((handle = plugin_load(h, file, dlflags)) == NULL)
goto done;
if ((new = malloc(sizeof(*new))) == NULL) {
clicon_err(OE_UNIX, errno, "dhunk: %s", strerror(errno));
dlclose(handle);
@ -224,7 +203,6 @@ plugin_load (clicon_handle h,
snprintf(new->p_name, sizeof(new->p_name), "%*s",
(int)strlen(name)-2, name);
new->p_handle = handle;
new->p_init = initfun;
if ((new->p_start = dlsym(handle, PLUGIN_START)) != NULL)
clicon_debug(2, "%s callback registered.", PLUGIN_START);
if ((new->p_exit = dlsym(handle, PLUGIN_EXIT)) != NULL)
@ -244,7 +222,7 @@ plugin_load (clicon_handle h,
if ((new->p_trans_abort = dlsym(handle, PLUGIN_TRANS_ABORT)) != NULL)
clicon_debug(2, "%s callback registered.", PLUGIN_TRANS_ABORT);
clicon_debug(2, "Plugin '%s' loaded.\n", name);
done:
return new;
}
@ -338,7 +316,7 @@ plugin_append(struct plugin *p)
* @retval -1 Error
*/
static int
config_plugin_load_dir(clicon_handle h,
backend_plugin_load_dir(clicon_handle h,
const char *dir)
{
int retval = -1;
@ -374,7 +352,7 @@ config_plugin_load_dir(clicon_handle h,
clicon_debug(1, "Loading master plugin '%.*s' ...",
(int)strlen(filename), filename);
new = plugin_load(h, filename, RTLD_NOW|RTLD_GLOBAL);
new = backend_plugin_load(h, filename, RTLD_NOW|RTLD_GLOBAL);
if (new == NULL)
goto quit;
if (plugin_append(new) < 0)
@ -387,7 +365,7 @@ config_plugin_load_dir(clicon_handle h,
continue; /* Skip master now */
snprintf(filename, MAXPATHLEN-1, "%s/%s", dir, dp[i].d_name);
clicon_debug(1, "Loading plugin '%.*s' ...", (int)strlen(filename), filename);
new = plugin_load(h, filename, RTLD_NOW);
new = backend_plugin_load(h, filename, RTLD_NOW);
if (new == NULL)
goto quit;
/* Append to 'plugins' */
@ -405,7 +383,7 @@ quit:
while (--np >= 0){
if ((p = &plugins[np]) == NULL)
continue;
plugin_unload(h, p);
backend_plugin_unload(h, p);
free(p);
}
free(plugins);
@ -428,7 +406,7 @@ plugin_initiate(clicon_handle h)
char *dir;
/* First load CLICON system plugins */
if (config_plugin_load_dir(h, CLIXON_BACKEND_SYSDIR) < 0)
if (backend_plugin_load_dir(h, CLIXON_BACKEND_SYSDIR) < 0)
return -1;
/* Then load application plugins */
@ -436,7 +414,7 @@ plugin_initiate(clicon_handle h)
clicon_err(OE_PLUGIN, 0, "backend_dir not defined");
return -1;
}
if (config_plugin_load_dir(h, dir) < 0)
if (backend_plugin_load_dir(h, dir) < 0)
return -1;
return 0;
@ -455,7 +433,7 @@ plugin_finish(clicon_handle h)
for (i = 0; i < nplugins; i++) {
p = &plugins[i];
plugin_unload(h, p);
backend_plugin_unload(h, p);
}
if (plugins){
free(plugins);