]> sigrok.org Git - libsigrok.git/blobdiff - session_file.c
sr: adjust copyright year
[libsigrok.git] / session_file.c
index bd3548ab4f7799a78a9c7b0ccee1e98704c3ef02..d983d7a0e65f91902d5b8202a0e93d684c8473ca 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * This file is part of the sigrok project.
  *
- * Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "config.h"
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <zip.h>
 #include <glib.h>
 #include <glib/gstdio.h>
-#include <sigrok.h>
+#include "config.h"
+#include "sigrok.h"
+#include "sigrok-internal.h"
 
 extern struct sr_session *session;
 extern struct sr_device_plugin session_driver;
 
-
-int session_load(const char *filename)
+/**
+ * Load the session from the specified filename.
+ *
+ * @param filename The name of the session file to load. Must not be NULL.
+ *
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments,
+ *         SR_ERR_MALLOC upon memory allocation errors, or SR_ERR upon
+ *         other errors.
+ */
+SR_API int sr_session_load(const char *filename)
 {
        GKeyFile *kf;
        GPtrArray *capturefiles;
@@ -43,41 +52,52 @@ int session_load(const char *filename)
        int ret, err, probenum, devcnt, i, j;
        uint64_t tmp_u64, total_probes, enabled_probes, p;
        char **sections, **keys, *metafile, *val, c;
+       char probename[SR_MAX_PROBENAME_LEN + 1];
+
+       if (!filename) {
+               sr_err("session file: %s: filename was NULL", __func__);
+               return SR_ERR_ARG;
+       }
 
        if (!(archive = zip_open(filename, 0, &err))) {
-               g_debug("Failed to open session file: zip error %d", err);
+               sr_dbg("Failed to open session file: zip error %d", err);
                return SR_ERR;
        }
 
        /* check "version" */
        if (!(zf = zip_fopen(archive, "version", 0))) {
-               g_debug("Not a sigrok session file.");
+               sr_dbg("Not a sigrok session file.");
                return SR_ERR;
        }
        ret = zip_fread(zf, &c, 1);
        if (ret != 1 || c != '1') {
-               g_debug("Not a valid sigrok session file.");
+               sr_dbg("Not a valid sigrok session file.");
                return SR_ERR;
        }
        zip_fclose(zf);
 
        /* read "metadata" */
        if (zip_stat(archive, "metadata", 0, &zs) == -1) {
-               g_debug("Not a valid sigrok session file.");
+               sr_dbg("Not a valid sigrok session file.");
                return SR_ERR;
        }
-       metafile = g_malloc(zs.size);
+
+       if (!(metafile = g_try_malloc(zs.size))) {
+               sr_err("session file: %s: metafile malloc failed", __func__);
+               return SR_ERR_MALLOC;
+       }
+
        zf = zip_fopen_index(archive, zs.index, 0);
        zip_fread(zf, metafile, zs.size);
        zip_fclose(zf);
 
        kf = g_key_file_new();
        if (!g_key_file_load_from_data(kf, metafile, zs.size, 0, NULL)) {
-               g_debug("Failed to parse metadata.");
+               sr_dbg("Failed to parse metadata.");
                return SR_ERR;
        }
 
-       session = session_new();
+       session = sr_session_new();
 
        devcnt = 0;
        capturefiles = g_ptr_array_new_with_free_func(g_free);
@@ -94,15 +114,15 @@ int session_load(const char *filename)
                        for (j = 0; keys[j]; j++) {
                                val = g_key_file_get_string(kf, sections[i], keys[j], NULL);
                                if (!strcmp(keys[j], "capturefile")) {
-                                       device = device_new(&session_driver, devcnt, 0);
+                                       device = sr_dev_new(&session_driver, devcnt);
                                        if (devcnt == 0)
                                                /* first device, init the plugin */
                                                device->plugin->init((char *)filename);
-                                       session_device_add(device);
+                                       sr_session_device_add(device);
                                        device->plugin->set_configuration(devcnt, SR_HWCAP_CAPTUREFILE, val);
                                        g_ptr_array_add(capturefiles, val);
                                } else if (!strcmp(keys[j], "samplerate")) {
-                                       tmp_u64 = sr_parse_sizestring(val);
+                                       sr_parse_sizestring(val, &tmp_u64);
                                        device->plugin->set_configuration(devcnt, SR_HWCAP_SAMPLERATE, &tmp_u64);
                                } else if (!strcmp(keys[j], "unitsize")) {
                                        tmp_u64 = strtoull(val, NULL, 10);
@@ -110,17 +130,19 @@ int session_load(const char *filename)
                                } else if (!strcmp(keys[j], "total probes")) {
                                        total_probes = strtoull(val, NULL, 10);
                                        device->plugin->set_configuration(devcnt, SR_HWCAP_CAPTURE_NUM_PROBES, &total_probes);
-                                       for (p = 1; p <= total_probes; p++)
-                                               device_probe_add(device, NULL);
+                                       for (p = 0; p < total_probes; p++) {
+                                               snprintf(probename, SR_MAX_PROBENAME_LEN, "%" PRIu64, p);
+                                               sr_dev_probe_add(device, probename);
+                                       }
                                } else if (!strncmp(keys[j], "probe", 5)) {
                                        if (!device)
                                                continue;
                                        enabled_probes++;
                                        tmp_u64 = strtoul(keys[j]+5, NULL, 10);
-                                       device_probe_name(device, tmp_u64, val);
+                                       sr_dev_probe_name(device, tmp_u64, val);
                                } else if (!strncmp(keys[j], "trigger", 7)) {
                                        probenum = strtoul(keys[j]+7, NULL, 10);
-                                       device_trigger_set(device, probenum, val);
+                                       sr_dev_trigger_set(device, probenum, val);
                                }
                        }
                        g_strfreev(keys);
@@ -136,19 +158,33 @@ int session_load(const char *filename)
        return SR_OK;
 }
 
-int session_save(char *filename)
+/**
+ * Save the current session to the specified file.
+ *
+ * @param filename The name of the file where to save the current session.
+ *                 Must not be NULL.
+ *
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR
+ *         upon other errors.
+ */
+int sr_session_save(const char *filename)
 {
        GSList *l, *p, *d;
        FILE *meta;
        struct sr_device *device;
        struct sr_probe *probe;
-       struct datastore *ds;
+       struct sr_datastore *ds;
        struct zip *zipfile;
        struct zip_source *versrc, *metasrc, *logicsrc;
        int bufcnt, devcnt, tmpfile, ret, error, probecnt;
        uint64_t samplerate;
        char version[1], rawname[16], metafile[32], *buf, *s;
 
+       if (!filename) {
+               sr_err("session file: %s: filename was NULL", __func__);
+               return SR_ERR_ARG;
+       }
+
        /* Quietly delete it first, libzip wants replace ops otherwise. */
        unlink(filename);
        if (!(zipfile = zip_open(filename, ZIP_CREATE, &error)))
@@ -159,8 +195,8 @@ int session_save(char *filename)
        if (!(versrc = zip_source_buffer(zipfile, version, 1, 0)))
                return SR_ERR;
        if (zip_add(zipfile, "version", versrc) == -1) {
-               g_message("error saving version into zipfile: %s",
-                         zip_strerror(zipfile));
+               sr_info("error saving version into zipfile: %s",
+                       zip_strerror(zipfile));
                return SR_ERR;
        }
 
@@ -189,12 +225,12 @@ int session_save(char *filename)
                        fprintf(meta, "capturefile = logic-%d\n", devcnt);
                        fprintf(meta, "unitsize = %d\n", ds->ds_unitsize);
                        fprintf(meta, "total probes = %d\n", g_slist_length(device->probes));
-                       if (device_has_hwcap(device, SR_HWCAP_SAMPLERATE)) {
+                       if (sr_dev_has_hwcap(device, SR_HWCAP_SAMPLERATE)) {
                                samplerate = *((uint64_t *) device->plugin->get_device_info(
                                                device->plugin_index, SR_DI_CUR_SAMPLERATE));
                                s = sr_samplerate_string(samplerate);
                                fprintf(meta, "samplerate = %s\n", s);
-                               free(s);
+                               g_free(s);
                        }
                        probecnt = 1;
                        for (p = device->probes; p; p = p->next) {
@@ -209,8 +245,14 @@ int session_save(char *filename)
                        }
 
                        /* dump datastore into logic-n */
-                       buf = malloc(ds->num_units * ds->ds_unitsize +
+                       buf = g_try_malloc(ds->num_units * ds->ds_unitsize +
                                   DATASTORE_CHUNKSIZE);
+                       if (!buf) {
+                               sr_err("session file: %s: buf malloc failed",
+                                      __func__);
+                               return SR_ERR_MALLOC;
+                       }
+
                        bufcnt = 0;
                        for (d = ds->chunklist; d; d = d->next) {
                                memcpy(buf + bufcnt, d->data,
@@ -234,7 +276,7 @@ int session_save(char *filename)
                return SR_ERR;
 
        if ((ret = zip_close(zipfile)) == -1) {
-               g_message("error saving zipfile: %s", zip_strerror(zipfile));
+               sr_info("error saving zipfile: %s", zip_strerror(zipfile));
                return SR_ERR;
        }
 
@@ -242,4 +284,3 @@ int session_save(char *filename)
 
        return SR_OK;
 }
-