cli, plugins/ctf/fs-src: Make src.ctf.fs accept multiple root paths
[babeltrace.git] / plugins / ctf / fs-src / file.c
1 /*
2 * Copyright 2016 - Philippe Proulx <pproulx@efficios.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 #include <stdio.h>
24 #include <sys/types.h>
25 #include <sys/stat.h>
26 #include <unistd.h>
27 #include <glib.h>
28 #include "file.h"
29
30 #define BT_LOG_TAG "PLUGIN-CTF-FS-FILE-SRC"
31 #include "logging.h"
32
33 BT_HIDDEN
34 void ctf_fs_file_destroy(struct ctf_fs_file *file)
35 {
36 if (!file) {
37 return;
38 }
39
40 if (file->fp) {
41 BT_LOGD("Closing file \"%s\" (%p)",
42 file->path ? file->path->str : NULL, file->fp);
43
44 if (fclose(file->fp)) {
45 BT_LOGE("Cannot close file \"%s\": %s",
46 file->path ? file->path->str : "NULL",
47 strerror(errno));
48 }
49 }
50
51 if (file->path) {
52 g_string_free(file->path, TRUE);
53 }
54
55 g_free(file);
56 }
57
58 BT_HIDDEN
59 struct ctf_fs_file *ctf_fs_file_create(void)
60 {
61 struct ctf_fs_file *file = g_new0(struct ctf_fs_file, 1);
62
63 if (!file) {
64 goto error;
65 }
66
67 file->path = g_string_new(NULL);
68 if (!file->path) {
69 goto error;
70 }
71
72 goto end;
73
74 error:
75 ctf_fs_file_destroy(file);
76 file = NULL;
77
78 end:
79 return file;
80 }
81
82 BT_HIDDEN
83 int ctf_fs_file_open(struct ctf_fs_file *file, const char *mode)
84 {
85 int ret = 0;
86 struct stat stat;
87
88 BT_LOGD("Opening file \"%s\" with mode \"%s\"", file->path->str, mode);
89 file->fp = fopen(file->path->str, mode);
90 if (!file->fp) {
91 BT_LOGE("Cannot open file \"%s\" with mode \"%s\": %s",
92 file->path->str, mode, strerror(errno));
93 goto error;
94 }
95
96 BT_LOGD("Opened file: %p", file->fp);
97
98 if (fstat(fileno(file->fp), &stat)) {
99 BT_LOGE("Cannot get file information: %s", strerror(errno));
100 goto error;
101 }
102
103 file->size = stat.st_size;
104 BT_LOGD("File is %jd bytes", (intmax_t) file->size);
105 goto end;
106
107 error:
108 ret = -1;
109
110 if (file->fp) {
111 if (fclose(file->fp)) {
112 BT_LOGE("Cannot close file \"%s\": %s", file->path->str,
113 strerror(errno));
114 }
115 }
116
117 end:
118 return ret;
119 }
This page took 0.03178 seconds and 4 git commands to generate.