handle single threading
[openocd.git] / src / server / httpd.c
index 8ab5cb8feddff437b0febb164d6c70f5430849f2..0ddeb97acc67b9cd7cd9718196be5c633bc0439e 100644 (file)
@@ -1,9 +1,7 @@
 /***************************************************************************
- *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
+ *   Copyright (C) 2007,2008,2009 Øyvind Harboe                            *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
- *   Copyright (C) 2008 Free Software Foundation
- *                                                                         *
  *   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  *
  *   the Free Software Foundation; either version 2 of the License, or     *
 #include <pthread.h>
 #include <signal.h>
 
-#define PAGE_NOT_FOUND "<html><head><title>File not found</title></head><body>File not found</body></html>"
+#define PAGE_NOT_FOUND "<html><head><title > File not found</title></head><body > File not found</body></html>"
+
+static pthread_mutex_t mutex;
+
+void openocd_sleep_prelude(void)
+{
+       pthread_mutex_unlock(&mutex);
+}
+
+void openocd_sleep_postlude(void)
+{
+       pthread_mutex_lock(&mutex);
+}
+
+
 
 int loadFile(const char *name, void **data, size_t *len);
 
@@ -71,7 +83,7 @@ static const char *httpd_exec_cgi_tcl_error(Jim_Interp *interp)
 
        t = appendf(t, "Runtime error, file \"%s\", line %d:<br>",
                        interp->errorFileName, interp->errorLine);
-       t = appendf(t, "    %s<br>", Jim_GetString(interp->result, NULL));
+       t = appendf(t, "    %s < br>", Jim_GetString(interp->result, NULL));
        Jim_ListLength(interp, interp->stackTrace, &len);
        for (i = 0; i < len; i += 3)
        {
@@ -84,7 +96,7 @@ static const char *httpd_exec_cgi_tcl_error(Jim_Interp *interp)
                file = Jim_GetString(objPtr, NULL);
                Jim_ListIndex(interp, interp->stackTrace, i + 2, &objPtr, JIM_NONE);
                line = Jim_GetString(objPtr, NULL);
-               t = appendf(t, "In procedure '%s' called at file \"%s\", line %s<br>",
+               t = appendf(t, "In procedure '%s' called at file \"%s\", line %s < br>",
                                proc, file, line);
        }
        t = appendf(t, "</html></body>\n");
@@ -111,7 +123,7 @@ static int httpd_Jim_Command_writeform(Jim_Interp *interp, int argc,
 
        const char *script = alloc_printf("set dummy_val $httppostdata(%s); set dummy_val",
                        name);
-       retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__ );
+       retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__);
        free((void *) script);
        if (retcode != JIM_OK)
                return retcode;
@@ -142,7 +154,7 @@ httpd_Jim_Command_formfetch(Jim_Interp *interp,
                                    int argc,
                                    Jim_Obj *const *argv)
 {
-    if (argc!=2)
+    if (argc != 2)
     {
         Jim_WrongNumArgs(interp, 1, argv, "method ?args ...?");
         return JIM_ERR;
@@ -152,7 +164,7 @@ httpd_Jim_Command_formfetch(Jim_Interp *interp,
 
     const char *script = alloc_printf("set dummy_val $httppostdata(%s); set dummy_val",
                        name);
-       int retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__ );
+       int retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__);
        free((void *) script);
        if (retcode != JIM_OK)
        {
@@ -186,7 +198,9 @@ static void request_completed(void *cls, struct MHD_Connection *connection,
 
        if (r->postprocessor)
        {
+               openocd_sleep_postlude();
                MHD_destroy_post_processor(r->postprocessor);
+               openocd_sleep_prelude();
        }
 
        free(r);
@@ -198,26 +212,43 @@ static void append_key(struct httpd_request *r, const char *key,
                const char *data, size_t off, size_t size)
 {
        Jim_Obj *keyObj = Jim_NewStringObj(interp, key, -1);
+       Jim_IncrRefCount(keyObj);
        Jim_Obj *value = NULL;
 
        Jim_Obj *dict = Jim_GetVariableStr(interp, "httppostdata", 0);
 
-       if (dict!=NULL)
+       if (dict != NULL)
        {
                if (Jim_DictKey(interp, dict, keyObj, &value, 0) != JIM_OK)
                {
                         value = NULL;
                }
+               else
+               {
+                       Jim_IncrRefCount(value);
+               }
        }
+
        if (value == NULL)
+       {
                value = Jim_NewStringObj(interp, "", -1);
+               Jim_IncrRefCount(value);
+
+       }
 
        /* create a new object we append to and insert into this location */
        Jim_Obj *newObj = Jim_NewStringObj(interp, "", -1);
+       Jim_IncrRefCount(newObj);
        Jim_AppendObj(interp, newObj, value);
        Jim_AppendString(interp, newObj, data, size);
        /* uhh... use name here of dictionary */
-       Jim_SetDictKeysVector(interp, Jim_NewStringObj(interp, "httppostdata", -1), &keyObj, 1, newObj);
+       dict = Jim_NewStringObj(interp, "httppostdata", -1);
+       Jim_IncrRefCount(dict);
+       Jim_SetDictKeysVector(interp, dict, &keyObj, 1, newObj);
+       Jim_DecrRefCount(interp, dict);
+       Jim_DecrRefCount(interp, value);
+       Jim_DecrRefCount(interp, newObj);
+       Jim_DecrRefCount(interp, keyObj);
 }
 
 /* append data to each key */
@@ -242,7 +273,7 @@ static int record_arg(void *cls, enum MHD_ValueKind kind, const char *key,
 }
 
 
-int handle_request(struct MHD_Connection * connection, const char * url)
+static int handle_request(struct MHD_Connection * connection, const char * url)
 {
        struct MHD_Response * response;
 
@@ -257,7 +288,7 @@ int handle_request(struct MHD_Connection * connection, const char * url)
 
                const char *script = alloc_printf(
                                "global httpdata; source {%s}; set httpdata", url);
-               retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__ );
+               retcode = Jim_Eval_Named(interp, script, "httpd.c", __LINE__);
                free((void *) script);
 
                if (retcode == JIM_ERR)
@@ -307,7 +338,7 @@ int handle_request(struct MHD_Connection * connection, const char * url)
                        return ret;
                }
 
-               LOG_DEBUG("Serving %s length=%u", url, len);
+               LOG_DEBUG("Serving %s length=%zu", url, len);
                /* serve file directly */
                response = MHD_create_response_from_data(len, data, MHD_YES, MHD_NO);
                MHD_add_response_header(response, "Content-Type", "image/png");
@@ -320,7 +351,7 @@ int handle_request(struct MHD_Connection * connection, const char * url)
        }
 }
 
-static int ahc_echo(void * cls, struct MHD_Connection * connection,
+static int ahc_echo_inner(void * cls, struct MHD_Connection * connection,
                const char * url, const char * method, const char * version,
                const char * upload_data, unsigned int * upload_data_size, void ** ptr)
 {
@@ -402,21 +433,35 @@ static int ahc_echo(void * cls, struct MHD_Connection * connection,
        if (!*url)
                url="index.tcl";
 
-       const char *file_name=alloc_printf("%s/%s", httpd_dir, url);
+       const char *file_name = alloc_printf("%s/%s", httpd_dir, url);
        int result = handle_request(connection, file_name);
        free((void *)file_name);
        return result;
 }
 
-static struct MHD_Daemon * d;
-static pthread_mutex_t mutex;
 
+static int ahc_echo(void * cls, struct MHD_Connection * connection,
+               const char * url, const char * method, const char * version,
+               const char * upload_data, unsigned int * upload_data_size, void ** ptr)
+{
+       int result;
+
+       openocd_sleep_postlude();
+
+       result = ahc_echo_inner(cls, connection, url, method, version, upload_data, upload_data_size, ptr);
+
+       openocd_sleep_prelude();
+
+       return result;
+}
+
+static struct MHD_Daemon * d;
 
 int httpd_start(void)
 {
        pthread_mutexattr_t attr;
-       pthread_mutexattr_init( &attr );
-       pthread_mutex_init( &mutex, &attr );
+       pthread_mutexattr_init(&attr);
+       pthread_mutex_init(&mutex, &attr);
 
        int port = 8888;
        LOG_USER("Launching httpd server on port %d", port);
@@ -446,16 +491,6 @@ int httpd_start(void)
 void httpd_stop(void)
 {
        MHD_stop_daemon(d);
-       pthread_mutex_destroy( &mutex );
-}
-
-void openocd_sleep_prelude(void)
-{
-       pthread_mutex_unlock( &mutex );
-}
-
-void openocd_sleep_postlude(void)
-{
-       pthread_mutex_lock( &mutex );
+       pthread_mutex_destroy(&mutex);
 }
 

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