ControlData g_controls = {CONTROL_STOP, PTHREAD_MUTEX_INITIALIZER, {0}};
-static bool PathExists(const char *path) {
+bool PathExists(const char *path)
+{
FILE *fp = fopen(path, "r");
if (fp) {
fclose(fp);
* @param params The input parameters
*/
void Control_Handler(FCGIContext *context, char *params) {
- const char *action, *key = "", *name = "";
+ const char *action = "";
+ const char *name = "";
bool force = false;
ControlModes desired_mode;
+
+
+ // Login/auth now handled entirely in fastcgi.c and login.c
+ //TODO: Need to not have the ability for any user to stop someone else' experiment...
+ // (achieve by storing the username of the person running the current experiment, even when they log out?)
+ // (Our program should only realisitically support a single experiment at a time, so that should be sufficient)
FCGIValue values[4] = {
{"action", &action, FCGI_REQUIRED(FCGI_STRING_T)},
- {"key", &key, FCGI_STRING_T},
{"force", &force, FCGI_BOOL_T},
{"name", &name, FCGI_STRING_T}
};
return;
} else if (!strcmp(action, "emergency")) {
desired_mode = CONTROL_EMERGENCY;
- } else if (!strcmp(action, "query")) {
- FCGI_BeginJSON(context, STATUS_OK);
- FCGI_JSONPair("state", Control_GetModeName(Control_GetMode()));
- FCGI_EndJSON();
- return;
- } else if (FCGI_HasControl(context, key)) {
- if (!strcmp(action, "release")) {
- FCGI_ReleaseControl(context);
- } else if (!strcmp(action, "start")) {
- desired_mode = CONTROL_START;
- } else if (!strcmp(action, "pause")) {
- desired_mode = CONTROL_PAUSE;
- } else if (!strcmp(action, "resume")) {
- desired_mode = CONTROL_RESUME;
- } else if (!strcmp(action, "stop")) {
- desired_mode = CONTROL_STOP;
- } else {
- FCGI_RejectJSON(context, "Unknown action specified.");
- return;
- }
+ }
+ else if (!strcmp(action, "release")) {
+ FCGI_ReleaseControl(context);
+ } else if (!strcmp(action, "start")) {
+ desired_mode = CONTROL_START;
+ } else if (!strcmp(action, "pause")) {
+ desired_mode = CONTROL_PAUSE;
+ } else if (!strcmp(action, "resume")) {
+ desired_mode = CONTROL_RESUME;
+ } else if (!strcmp(action, "stop")) {
+ desired_mode = CONTROL_STOP;
} else {
- FCGI_RejectJSONEx(context, STATUS_UNAUTHORIZED,
- "Invalid control key specified.");
+ FCGI_RejectJSON(context, "Unknown action specified.");
return;
}
-
+
void *arg = NULL;
if (desired_mode == CONTROL_START) {
- int len = strlen(name);
- if (len <= 0) {
- FCGI_RejectJSON(context, "An experiment name must be specified.");
- return;
- } else if (PathExists(name) && !force) {
+ if (PathExists(name) && !force) {
FCGI_RejectJSON(context, "An experiment with that name already exists.");
return;
}
const char *ret = NULL;
pthread_mutex_lock(&(g_controls.mutex));
- if (g_controls.current_mode == CONTROL_EMERGENCY && desired_mode != CONTROL_STOP) {
- ret = "In emergency mode. Stop before doing anything else.";
- } else if (g_controls.current_mode == desired_mode) {
- ret = "Already in desired mode.";
- } else if (desired_mode == CONTROL_START) {
- if (g_controls.current_mode == CONTROL_STOP) {
- //TODO Sanitise name (ensure it contains no special chars eg \ / .. .
- FILE *fp = fopen((const char*) arg, "a");
- if (fp) {
- fclose(fp);
- gettimeofday(&(g_controls.start_time), NULL);
- } else {
- ret = "Cannot open experiment name marker";
- }
- } else {
- ret = "Cannot start when not in a stopped state.";
- }
- } else if (desired_mode == CONTROL_RESUME) {
- if (g_controls.current_mode != CONTROL_PAUSE)
- ret = "Cannot resume when not in a paused state.";
+ if (g_controls.current_mode == desired_mode)
+ ret = "Already in the desired mode.";
+ else if (g_controls.current_mode == CONTROL_EMERGENCY && desired_mode != CONTROL_STOP)
+ ret = "In emergency mode. You must stop before continuing.";
+ else switch (desired_mode) {
+ case CONTROL_START:
+ if (g_controls.current_mode == CONTROL_STOP) {
+ const char * name = arg;
+ if (!*name)
+ ret = "An experiment name must be specified";
+ else if (strpbrk(name, INVALID_CHARACTERS))
+ ret = "The experiment name must not contain: " INVALID_CHARACTERS_JSON;
+ else {
+ FILE *fp = fopen((const char*) arg, "a");
+ if (fp) {
+ fclose(fp);
+ gettimeofday(&(g_controls.start_time), NULL);
+ } else
+ ret = "Cannot open experiment name marker";
+ }
+ } else
+ ret = "Cannot start when not in a stopped state.";
+ break;
+ case CONTROL_PAUSE:
+ if (g_controls.current_mode != CONTROL_START)
+ ret = "Cannot pause when not in a running state.";
+ break;
+ case CONTROL_RESUME:
+ if (g_controls.current_mode != CONTROL_PAUSE)
+ ret = "Cannot resume when not in a paused state.";
+ break;
+ case CONTROL_EMERGENCY:
+ if (g_controls.current_mode != CONTROL_START) //pfft
+ ret = "Not running so how can there be an emergency.";
+ break;
+ default:
+ break;
}
if (ret == NULL) {
}
/**
- * Gets the current mode.
- * @return The current mode
- */
-ControlModes Control_GetMode() {
- return g_controls.current_mode;
-}
-
-/**
- * Gets a string representation of a mode
+ * Gets a string representation of the current mode
* @param mode The mode to get a string representation of
* @return The string representation of the mode
*/
-const char * Control_GetModeName(ControlModes mode) {
+const char * Control_GetModeName() {
const char * ret = "Unknown";
- switch (mode) {
+ switch (g_controls.current_mode) {
case CONTROL_START: ret = "Running"; break;
case CONTROL_PAUSE: ret = "Paused"; break;
case CONTROL_RESUME: ret = "Resumed"; break;
return ret;
}
-/*
-bool Control_Lock() {
- pthread_mutex_lock(&(g_controls.mutex));
- if (g_controls.state == STATE_RUNNING || g_controls.state == STATE_PAUSED)
- return true;
- pthread_mutex_unlock(&(g_controls.mutex));
- return false;
-}
-
-void Control_Unlock() {
- pthread_mutex_unlock(&(g_controls.mutex));
-}*/
-
/**
* Gets the start time for the current experiment
* @return the start time
*/
const struct timeval* Control_GetStartTime() {
return &g_controls.start_time;
-}
\ No newline at end of file
+}
git.ucc.asn.au / matches / MCTX3420.git / blobdiff
UCC git Repository :: git.ucc.asn.au