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libsigrok
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output_text: More error handling.

This commit is contained in:
Uwe Hermann 2010-05-09 15:38:33 +02:00
parent caf62e22c4
commit e734b81a68
1 changed files with 44 additions and 18 deletions
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62
output/output_text.c
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@ -63,7 +63,7 @@ static void flush_linebufs(struct context *ctx, char *outbuf)
ctx->probelist[i], ctx->linebuf + i * ctx->linebuf_len);
}
/* Mark trigger with ^ */
/* Mark trigger with a ^ character. */
if (ctx->mark_trigger != -1)
sprintf(outbuf + strlen(outbuf), "T:%*s^\n",
ctx->mark_trigger + (ctx->mark_trigger / 8), "");
@ -80,7 +80,9 @@ static int init(struct output *o, int default_spl)
int num_probes;
char *samplerate_s;
ctx = malloc(sizeof(struct context));
if (!(ctx = calloc(1, sizeof(struct context))))
return SIGROK_ERR_MALLOC;
o->internal = ctx;
ctx->num_enabled_probes = 0;
@ -101,25 +103,41 @@ static int init(struct output *o, int default_spl)
else
ctx->samples_per_line = default_spl;
ctx->header = malloc(512);
if (!(ctx->header = malloc(512))) {
free(ctx);
return SIGROK_ERR_MALLOC;
}
snprintf(ctx->header, 511, "%s\n", PACKAGE_STRING);
if (o->device->plugin) {
num_probes = g_slist_length(o->device->probes);
samplerate = *((uint64_t *) o->device->plugin->get_device_info(
o->device->plugin_index, DI_CUR_SAMPLERATE));
if ((samplerate_s = sigrok_samplerate_string(samplerate)) == NULL)
if (!(samplerate_s = sigrok_samplerate_string(samplerate))) {
free(ctx->header);
free(ctx);
return SIGROK_ERR;
snprintf(ctx->header + strlen(ctx->header), 511 - strlen(ctx->header),
"Acquisition with %d/%d probes at %s\n", ctx->num_enabled_probes,
num_probes, samplerate_s);
}
snprintf(ctx->header + strlen(ctx->header),
511 - strlen(ctx->header),
"Acquisition with %d/%d probes at %s\n",
ctx->num_enabled_probes, num_probes, samplerate_s);
free(samplerate_s);
}
ctx->linebuf_len = ctx->samples_per_line * 2;
ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len);
ctx->linevalues = calloc(1, num_probes);
if (!(ctx->linebuf = calloc(1, num_probes * ctx->linebuf_len))) {
free(ctx->header);
free(ctx);
return SIGROK_ERR_MALLOC;
}
if (!(ctx->linevalues = calloc(1, num_probes))) {
free(ctx->header);
free(ctx);
return SIGROK_ERR_MALLOC;
}
return 0;
return SIGROK_OK;
}
static int event(struct output *o, int event_type, char **data_out,
@ -137,7 +155,8 @@ static int event(struct output *o, int event_type, char **data_out,
case DF_END:
outsize = ctx->num_enabled_probes
* (ctx->samples_per_line + 20) + 512;
outbuf = calloc(1, outsize);
if (!(outbuf = calloc(1, outsize)))
return SIGROK_ERR_MALLOC;
flush_linebufs(ctx, outbuf);
*data_out = outbuf;
*length_out = strlen(outbuf);
@ -165,14 +184,17 @@ static int data_bits(struct output *o, char *data_in, uint64_t length_in,
ctx = o->internal;
outsize = length_in / ctx->unitsize * ctx->num_enabled_probes *
ctx->samples_per_line + 512;
outbuf = calloc(1, outsize + 1);
if (!(outbuf = calloc(1, outsize + 1)))
return SIGROK_ERR_MALLOC;
outbuf[0] = '\0';
if (ctx->header) {
/* The header is still here, this must be the first packet. */
strncpy(outbuf, ctx->header, outsize);
free(ctx->header);
ctx->header = NULL;
} else
outbuf[0] = 0;
}
if (length_in >= ctx->unitsize) {
for (offset = 0; offset <= length_in - ctx->unitsize;
@ -204,8 +226,9 @@ static int data_bits(struct output *o, char *data_in, uint64_t length_in,
ctx->mark_trigger = -1;
}
}
} else
} else {
g_message("short buffer (length_in=%" PRIu64 ")", length_in);
}
*data_out = outbuf;
*length_out = strlen(outbuf);
@ -229,14 +252,17 @@ static int data_hex(struct output *o, char *data_in, uint64_t length_in,
ctx = o->internal;
outsize = length_in / ctx->unitsize * ctx->num_enabled_probes *
ctx->samples_per_line + 512;
outbuf = calloc(1, outsize + 1);
if (!(outbuf = calloc(1, outsize + 1)))
return SIGROK_ERR_MALLOC;
outbuf[0] = '\0';
if (ctx->header) {
/* The header is still here, this must be the first packet. */
strncpy(outbuf, ctx->header, outsize);
free(ctx->header);
ctx->header = NULL;
} else
outbuf[0] = 0;
}
ctx->line_offset = 0;
for (offset = 0; offset <= length_in - ctx->unitsize;