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sr_init(): Sanity-check input/output modules.

This commit is contained in:
Uwe Hermann 2013-03-10 17:13:15 +01:00
parent 0b4b41eed8
commit 218e629fa4
1 changed files with 112 additions and 0 deletions
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112
backend.c
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@ -204,6 +204,108 @@ static int sanity_check_all_drivers(void)
return ret;
}
/**
* Sanity-check all libsigrok input modules.
*
* @return SR_OK if all modules are OK, SR_ERR if one or more have issues.
*/
static int sanity_check_all_input_modules(void)
{
int i, errors, ret = SR_OK;
struct sr_input_format **inputs;
const char *d;
sr_spew("Sanity-checking all input modules.");
inputs = sr_input_list();
for (i = 0; inputs[i]; i++) {
errors = 0;
d = (inputs[i]->id) ? inputs[i]->id : "NULL";
if (!inputs[i]->id) {
sr_err("No ID in module %d ('%s').", i, d);
errors++;
}
if (!inputs[i]->description) {
sr_err("No description in module %d ('%s').", i, d);
errors++;
}
if (!inputs[i]->format_match) {
sr_err("No format_match in module %d ('%s').", i, d);
errors++;
}
if (!inputs[i]->init) {
sr_err("No init in module %d ('%s').", i, d);
errors++;
}
if (!inputs[i]->loadfile) {
sr_err("No loadfile in module %d ('%s').", i, d);
errors++;
}
if (errors == 0)
continue;
ret = SR_ERR;
}
return ret;
}
/**
* Sanity-check all libsigrok output modules.
*
* @return SR_OK if all modules are OK, SR_ERR if one or more have issues.
*/
static int sanity_check_all_output_modules(void)
{
int i, errors, ret = SR_OK;
struct sr_output_format **outputs;
const char *d;
sr_spew("Sanity-checking all output modules.");
outputs = sr_output_list();
for (i = 0; outputs[i]; i++) {
errors = 0;
d = (outputs[i]->id) ? outputs[i]->id : "NULL";
if (!outputs[i]->id) {
sr_err("No ID in module %d ('%s').", i, d);
errors++;
}
if (!outputs[i]->description) {
sr_err("No description in module %d ('%s').", i, d);
errors++;
}
if (outputs[i]->df_type < 10000 || outputs[i]->df_type > 10007) {
sr_err("Invalid df_type %d in module %d ('%s').",
outputs[i]->df_type, i, d);
errors++;
}
/* All modules must provide a data or recv API callback. */
if (!outputs[i]->data && !outputs[i]->recv) {
sr_err("No data/recv in module %d ('%s').", i, d);
errors++;
}
/*
* Currently most API calls are optional (their function
* pointers can thus be NULL) in theory: init, event, cleanup.
*/
if (errors == 0)
continue;
ret = SR_ERR;
}
return ret;
}
/**
* Initialize libsigrok.
*
@ -233,6 +335,16 @@ SR_API int sr_init(struct sr_context **ctx)
return ret;
}
if (sanity_check_all_input_modules() < 0) {
sr_err("Internal input module error(s), aborting.");
return ret;
}
if (sanity_check_all_output_modules() < 0) {
sr_err("Internal output module error(s), aborting.");
return ret;
}
/* + 1 to handle when struct sr_context has no members. */
context = g_try_malloc0(sizeof(struct sr_context) + 1);