From 0ce0d8d6e0c420ccafa79e0203b928c3559a4311 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Fri, 5 Mar 2021 00:43:38 +0100 Subject: Split source files, merge public header files, eliminite use gpp, rewrite makefile MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libgamma_perror.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 libgamma_perror.c (limited to 'libgamma_perror.c') diff --git a/libgamma_perror.c b/libgamma_perror.c new file mode 100644 index 0000000..92060d8 --- /dev/null +++ b/libgamma_perror.c @@ -0,0 +1,40 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * Prints an error to stderr in a `perror` fashion + * + * @param name The text to add at the beginning + * @param value The error code, may be an `errno` value + */ +void +libgamma_perror(const char *name, int error_code) +{ + const char *desc, *gname; + char buf[1024]; + long int gid; + + desc = libgamma_strerror_r(error_code, buf, sizeof(buf)); + + if (error_code == LIBGAMMA_DEVICE_REQUIRE_GROUP) { + gid = (intmax_t)libgamma_group_gid_get(); + gname = libgamma_group_name_get(); + if (!gname) { + if (name && *name) + fprintf(stderr, "%s: %s in group %ji\n", name, desc, gid); + else + fprintf(stderr, "%s in group %ji\n", desc, gid); + } else { + if (name && *name) + fprintf(stderr, "%s: %s in group %s (%ji)\n", name, desc, gname, gid); + else + fprintf(stderr, "%s in group %s (%ji)\n", desc, gname, gid); + } + } else { + if (name && *name) + fprintf(stderr, "%s: %s\n", name, desc); + else + fprintf(stderr, "%s\n", desc); + } +} -- cgit v1.2.3-70-g09d2