139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
#define EFL_BETA_API_SUPPORT 1
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#include <stdio.h>
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#include <Eina.h>
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#include <Efl_Core.h>
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#define FILENAME "/tmp/core_loop_test.txt"
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/*
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* Efl Core Loop examples.
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*
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* A collection of loop examples. First we print out loop information and
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* show how loops are inherited.
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*
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* Then we move on to the Efl.Loop.Fd and show how you could use a loop to
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* read or write to an FD without blocking.
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*/
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static void _read_fd_create();
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static void
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_print_loop(Efl_Loop *loop, const char *label)
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{
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printf("%s loop found at %p \"%s\"\n", label, loop, efl_name_get(loop));
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}
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static void
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_read_fd_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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Efl_Loop_Fd *fd_obj;
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char buf[7];
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int len;
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fd_obj = event->object;
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len = read(efl_loop_fd_file_get(fd_obj), &buf, sizeof(buf));
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// here we are exiting
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if (len <= 0)
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{
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efl_unref(fd_obj);
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unlink(FILENAME);
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efl_exit(0);
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return;
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}
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buf[len] = 0;
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printf("Reading from: %s\n", efl_name_get(fd_obj));
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}
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static void
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_write_fd_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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Efl_Loop_Fd *fd_obj;
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static int _count = 0;
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fd_obj = event->object;
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// we have output all we wanted, remove the write handler
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// and start checking for read availability instead
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if (_count >= 5)
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{
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efl_unref(fd_obj);
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_read_fd_create();
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return;
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}
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_count++;
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printf("Writing to: %s\n", efl_name_get(fd_obj));
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write(efl_loop_fd_file_get(fd_obj), eina_slstr_printf("TEST %d\n", _count), 7);
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}
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static void
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_write_fd_create()
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{
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Efl_Loop_Fd *fd_obj;
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FILE *file;
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int fd;
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fd_obj = efl_new(EFL_LOOP_FD_CLASS,
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efl_name_set(efl_added, "Write FD"));
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efl_event_callback_add(fd_obj, EFL_LOOP_FD_EVENT_WRITE, _write_fd_cb, NULL);
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file = fopen(FILENAME, "w+");
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fd = fileno(file);
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printf("Opened file %s with fd %d\n", FILENAME, fd);
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efl_loop_fd_file_set(fd_obj, fd);
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}
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static void
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_read_fd_create()
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{
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Efl_Loop_Fd *fd_obj;
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FILE *file;
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int fd;
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fd_obj = efl_new(EFL_LOOP_FD_CLASS,
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efl_name_set(efl_added, "Read FD"));
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efl_event_callback_add(fd_obj, EFL_LOOP_FD_EVENT_READ, _read_fd_cb, NULL);
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file = fopen(FILENAME, "r");
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fd = fileno(file);
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printf("Opened file %s with fd %d\n", FILENAME, fd);
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efl_loop_fd_file_set(fd_obj, fd);
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}
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EAPI_MAIN void
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efl_main(void *data EINA_UNUSED, const Efl_Event *ev)
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{
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const Efl_Version *version;
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Efl_Loop *loop;
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loop = ev->object;
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version = efl_app_efl_version_get(loop);
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printf("Running on EFL version %d.%d.%d [%s]\n\n", version->major, version->minor,
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version->micro, version->build_id);
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_print_loop(loop, "Application");
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loop = efl_add(EFL_LOOP_CONSUMER_CLASS, loop,
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efl_name_set(efl_added, "Loop Consumer"));
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_print_loop(loop, "Child");
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efl_del(loop);
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printf("\n");
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_write_fd_create();
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// we will call _read_fd_create() once write is complete!
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// we will exit from the end of the read loop
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}
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EFL_MAIN()
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