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Ken Rastatter's fixes to improve portability of this example:

Browse Source 
These minor changes remove portability issues with the this example and allow
it to run on Win32. Specifically:

* The use of pthread_create() has been replaced by g_thread_create(). This
removes the dependency on the pthreads library. Since this is an example using
GTK+, g_thread_create() is available as it is a part of glibc.

* The CURLOPT_FILE option is now referred to by its "newer name"
CURLOPT_WRITEDATA.

* The use of CURLOPT_WRITEFUNCTION has been added.  As described in the docs,
this avoids the crashes when using a DLL under Win32.

* The output file has been renamed from "/tmp/test.curl" to "test.curl". It's
unlikely that there is a /tmp when in Win32 and other examples in libcurl
write their output files to the working directory.
This commit is contained in:
Daniel Stenberg 2004-02-09 07:12:33 +00:00
parent 3e4cd0b422
commit 7f679c3da3
1 changed files with 20 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
docs/examples/curlgtk.c
View File

@ -1,8 +1,8 @@
/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* $Id$
@ -17,10 +17,13 @@
#include <curl/types.h> /* new for v7 */
#include <curl/easy.h> /* new for v7 */
#include <pthread.h>
GtkWidget *Bar;
size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fwrite(ptr, size, nmemb, stream);
}
size_t my_read_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fread(ptr, size, nmemb, stream);
@ -45,25 +48,27 @@ void *curl_thread(void *ptr)
CURLcode res;
FILE *outfile;
gchar *url = ptr;
curl = curl_easy_init();
if(curl)
{
outfile = fopen("/tmp/test.curl", "w");
outfile = fopen("test.curl", "w");
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_FILE, outfile);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_read_func);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, FALSE);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, Bar);
res = curl_easy_perform(curl);
fclose(outfile);
/* always cleanup */
curl_easy_cleanup(curl);
}
return NULL;
}
@ -71,11 +76,10 @@ int main(int argc, char **argv)
{
GtkWidget *Window, *Frame, *Frame2;
GtkAdjustment *adj;
pthread_t curl_tid;
/* Init thread */
g_thread_init(NULL);
gtk_init(&argc, &argv);
Window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
Frame = gtk_frame_new(NULL);
@ -90,8 +94,10 @@ int main(int argc, char **argv)
gtk_container_add(GTK_CONTAINER(Frame2), Bar);
gtk_widget_show_all(Window);
pthread_create(&curl_tid, NULL, curl_thread, argv[1]);
if (!g_thread_create(&curl_thread, argv[1], FALSE, NULL) != 0)
g_warning("can't create the thread");
gdk_threads_enter();
gtk_main();
gdk_threads_leave();