}
/**
- * set a file descriptor to non-blocking mode
+ * Set a file descriptor to non-blocking mode.
*
- * \param fd The file descriptor
+ * \param fd The file descriptor.
*
- * \returns 1 on success, -E_F_GETFL, -E_F_SETFL, on errors.
+ * \return Standard.
*/
int mark_fd_nonblock(int fd)
{
int flags = fcntl(fd, F_GETFL);
if (flags < 0)
- return -E_F_GETFL;
- if (fcntl(fd, F_SETFL, ((long)flags) | O_NONBLOCK) < 0)
- return -E_F_SETFL;
+ return -ERRNO_TO_PARA_ERROR(errno);
+ flags = fcntl(fd, F_SETFL, ((long)flags) | O_NONBLOCK);
+ if (flags < 0)
+ return -ERRNO_TO_PARA_ERROR(errno);
return 1;
}
* The mode parameter must be specified when O_CREAT is in the flags, and is ignored
* otherwise.
*
- * \return Positive on success, negative on errors.
+ * \return The file descriptor on success, negative on errors.
*
* \sa open(2).
*/
if (ret >= 0)
return ret;
- switch (errno) {
- case EEXIST:
- ret = -E_EXIST;
- break;
- case EISDIR:
- ret = -E_ISDIR;
- break;
- case ENOENT:
- ret = -E_NOENT;
- break;
- case EPERM:
- ret = -E_OPEN_PERM;
- break;
- };
- PARA_ERROR_LOG("failed to open %s: %s\n", path, strerror(errno));
- return ret;
+ return -ERRNO_TO_PARA_ERROR(errno);
+}
+
+/**
+ * Wrapper for chdir(2).
+ *
+ * \param path the specified directory.
+ *
+ * \return Positive on success, negative on errors.
+ */
+int para_chdir(const char *path)
+{
+ int ret = chdir(path);
+
+ if (ret >= 0)
+ return 1;
+ return -ERRNO_TO_PARA_ERROR(errno);
}
/**
return ret;
*cwd = ret;
}
- ret = -E_CHDIR;
- if (chdir(dirname) < 0)
+ ret = para_chdir(dirname);
+ if (ret < 0)
goto close_cwd;
ret = -E_OPENDIR;
*dir = opendir(".");
* \param path Name of the directory to create.
* \param mode The permissions to use.
*
- * \return positive on success, negative on errors.
+ * \return Standard.
*/
int para_mkdir(const char *path, mode_t mode)
{
if (!mkdir(path, mode))
return 1;
- if (errno == EEXIST)
- return -E_EXIST;
- if (errno == ENOSPC)
- return -E_NOSPC;
- if (errno == ENOTDIR)
- return -E_NOTDIR;
- if (errno == EPERM)
- return -E_MKDIR_PERM;
- return -E_MKDIR;
+ return -ERRNO_TO_PARA_ERROR(errno);
}