dl.c File Reference

#include "uv.h"
#include "internal.h"
#include <dlfcn.h>
#include <errno.h>
#include <string.h>
#include <locale.h>

Go to the source code of this file.

Functions
static int	uv__dlerror (uv_lib_t *lib)
int	uv_dlopen (const char *filename, uv_lib_t *lib)
void	uv_dlclose (uv_lib_t *lib)
int	uv_dlsym (uv_lib_t *lib, const char *name, void **ptr)
const char *	uv_dlerror (const uv_lib_t *lib)

Function Documentation

uv__dlerror()

static int uv__dlerror ( uv_lib_t *  lib )

static

Definition at line 65 of file dl.c.

                                      {
  const char* errmsg;
 
  uv__free(lib->errmsg);
 
  errmsg = dlerror();
 
  if (errmsg) {
    lib->errmsg = uv__strdup(errmsg);
    return -1;
  }
  else {
    lib->errmsg = NULL;
    return 0;
  }
}

References uv_lib_t::errmsg, NULL, uv__free(), and uv__strdup().

Referenced by uv_dlopen(), and uv_dlsym().

uv_dlclose()

void uv_dlclose

(

uv_lib_t *

lib

)

Definition at line 41 of file dl.c.

                               {
  uv__free(lib->errmsg);
  lib->errmsg = NULL;
 
  if (lib->handle) {
    /* Ignore errors. No good way to signal them without leaking memory. */
    dlclose(lib->handle);
    lib->handle = NULL;
  }
}

uv_dlerror()

const char* uv_dlerror

(

const uv_lib_t *

lib

)

Definition at line 60 of file dl.c.

                                            {
  return lib->errmsg ? lib->errmsg : "no error";
}

uv_dlopen()

int uv_dlopen	(	const char *	filename,
		uv_lib_t *	lib
	)

Definition at line 33 of file dl.c.

                                                   {
  dlerror(); /* Reset error status. */
  lib->errmsg = NULL;
  lib->handle = dlopen(filename, RTLD_LAZY);
  return lib->handle ? 0 : uv__dlerror(lib);
}

uv_dlsym()

int uv_dlsym	(	uv_lib_t *	lib,
		const char *	name,
		void **	ptr
	)

Definition at line 53 of file dl.c.

                                                          {
  dlerror(); /* Reset error status. */
  *ptr = dlsym(lib->handle, name);
  return uv__dlerror(lib);
}