X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=fd.c;h=d53a3b4521fdbec1e16aa3263ba07f699feac40c;hp=b913009369ba6029fcdf4fa8378c9d926e30dd10;hb=0a2aa419ef9fcdb667ebcbe1a425802578aa153d;hpb=6969c9fa8293a44daf7ba5a0426573fcd71c1953 diff --git a/fd.c b/fd.c index b9130093..d53a3b45 100644 --- a/fd.c +++ b/fd.c @@ -47,8 +47,8 @@ int file_exists(const char *fn) * \param n the highest-numbered descriptor in any of the two sets, plus 1 * \param readfds fds that should be checked for readability * \param writefds fds that should be checked for writablility - * \param timeout upper bound on the amount of time elapsed before select() - * returns + * \param timeout_tv upper bound on the amount of time elapsed before select() + * returns * * \return The return value of the underlying select() call. * @@ -56,11 +56,11 @@ int file_exists(const char *fn) * \sa select(2) select_tut(2) */ int para_select(int n, fd_set *readfds, fd_set *writefds, - struct timeval *timeout) + struct timeval *timeout_tv) { int ret, err; do { - ret = select(n, readfds, writefds, NULL, timeout); + ret = select(n, readfds, writefds, NULL, timeout_tv); err = errno; } while (ret < 0 && err == EINTR); if (ret < 0) @@ -140,3 +140,29 @@ __must_check int para_fread(void *dest, size_t nbytes, size_t nmemb, FILE *strea return 0; return -E_FREAD; } +/** +* paraslash's wrapper for fgets(3) +* \param line pointer to the buffer to store the line +* \param size the size of the buffer given by \a line +* \param f the stream to read from +* +* \return Unlike the standard fgets() function, an integer value +* is returned. On success, this function returns 1. On errors, -E_FGETS +* is returned. A zero return value indicates an end of file condition. +*/ +__must_check int para_fgets(char *line, int size, FILE *f) +{ +again: + if (fgets(line, size, f)) + return 1; + if (feof(f)) + return 0; + if (!ferror(f)) + return -E_FGETS; + if (errno != EINTR) { + PARA_ERROR_LOG("%s\n", strerror(errno)); + return -E_FGETS; + } + clearerr(f); + goto again; +}