asynchronous execution finaly working

[mirrors/libpurple-core-answerscripts.git] / answerscripts.c

diff --git a/answerscripts.c b/answerscripts.c
index 7c7da4e1cf2de3c1ae8d4a9460183614c05355bf..df61a270cee9107fcddb17583591109780edbfb3 100755 (executable)
--- a/answerscripts.c
+++ b/answerscripts.c
@@ -15,19 +15,50 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <errno.h>
 
-#define RESPONSE_LINE_LENGTH 4096
-#define HOOK_SCRIPT "answerscripts.exe"
+#define ANSWERSCRIPT "answerscripts.exe"
+#define ANSWERSCRIPTS_TIMEOUT_INTERVAL 250
+#define ANSWERSCRIPTS_LINE_LENGTH 4096
+
+//#define __WIN32__
+
+#ifndef __WIN32__
+       #include <fcntl.h>
+#endif
 
 char *buff = NULL;
 char *hook_script = NULL;
-char response[RESPONSE_LINE_LENGTH+1];
+char response[ANSWERSCRIPTS_LINE_LENGTH+1];
 int i;
 
+typedef struct {
+  FILE *pipe;
+  PurpleConversation *conv;
+} answerscripts_job;
+
+int answerscripts_process_message_cb(answerscripts_job *job) {
+       FILE *pipe = job->pipe;
+       PurpleConversation *conv = job->conv;
+
+       if (pipe && !feof(pipe)) {
+               if(!fgets(response, ANSWERSCRIPTS_LINE_LENGTH, pipe)
+                       && (errno == EWOULDBLOCK || errno == EAGAIN)
+               ) return 1;
+
+               for(i=0;response[i];i++) if(response[i]=='\n') response[i]=0;
+               purple_conv_im_send(purple_conversation_get_im_data(conv), response);
+
+               if(!feof(pipe)) return 1;
+       }
+       pclose(pipe);
+       free(job);
+       return 0;
+}
+
 static void
-received_im_msg_cb(PurpleAccount * account, char *who, char *buffer,
-PurpleConversation * conv, PurpleMessageFlags flags,
-void *data) {
+received_im_msg_cb(PurpleAccount *account, char *who, char *buffer, PurpleConversation *conv, PurpleMessageFlags flags, void *data) {
+
        /* A workaround to avoid skipping of the first message as a result on NULL-conv: */
        if (conv == NULL) conv = purple_conversation_new(PURPLE_CONV_TYPE_IM, account, who);
 
@@ -38,17 +69,23 @@ void *data) {
        setenv("PURPLE_FROM", who, 1);
        setenv("PURPLE_MSG", buff, 1);
 
-       FILE* pipe = popen(hook_script, "r"); //TODO: process scripts and send response asynchronously
-       while (pipe && fgets(response, RESPONSE_LINE_LENGTH, pipe)) {
-               for(i=0;response[i];i++) if(response[i]=='\n') response[i]=0;
-               purple_conv_im_send(purple_conversation_get_im_data(conv), response);
-       }
-       pclose(pipe);
+
+       answerscripts_job *job = (answerscripts_job*) malloc(sizeof(answerscripts_job));
+       job->pipe = popen(hook_script, "r");
+       job->conv = conv;
+
+       #ifndef __WIN32__
+               int fflags = fcntl(fileno(job->pipe), F_GETFL, 0);
+               fcntl(fileno(job->pipe), F_SETFL, fflags | O_NONBLOCK);
+       #endif
+
+       purple_timeout_add(ANSWERSCRIPTS_TIMEOUT_INTERVAL, (GSourceFunc) answerscripts_process_message_cb, (gpointer) job);
+
 }
 
 
 static gboolean plugin_load(PurplePlugin * plugin) {
-       asprintf(&hook_script,"%s/%s",purple_user_dir(),HOOK_SCRIPT);
+       asprintf(&hook_script,"%s/%s",purple_user_dir(),ANSWERSCRIPT);
 
        void *conv_handle = purple_conversations_get_handle();
 
@@ -75,9 +112,9 @@ static PurplePluginInfo info = {
 
        "core-answerscripts",
        "AnswerScripts",
-       "0.1",
+       "0.1.1",
        "Framework for hooking scripts to received messages for various libpurple clients",
-       "This plugin will call ~/.purple/" HOOK_SCRIPT " (or wherever purple_user_dir() points) "
+       "This plugin will call ~/.purple/" ANSWERSCRIPT " (or wherever purple_user_dir() points) "
                "script (or any executable) for each single message called."
                "Envinronment values PURPLE_MSG and PURPLE_FROM will be set to carry "
                "informations about message text and sender so script can respond to that message. "