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#ifndef QUICKMEDIA_PROGRAM_H
#define QUICKMEDIA_PROGRAM_H
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
pid_t pid;
int read_fd;
int write_fd;
} ProgramPipe;
/* Return 0 if you want to continue reading. @data is null-terminated */
typedef int (*ProgramOutputCallback)(char *data, int size, void *userdata);
/*
@args need to have at least 2 arguments. The first which is the program name
and the last which is NULL, which indicates end of args
*/
int exec_program(const char **args, ProgramOutputCallback output_callback, void *userdata);
// Return the exit status, or a negative value if waiting failed
int wait_program(pid_t process_id);
/* Returns 1 if the program quit and exited properly (non-0 exit codes also count as exiting properly) */
int wait_program_non_blocking(pid_t process_id, int *status);
/*
@args need to have at least 2 arguments. The first which is the program name
and the last which is NULL, which indicates end of args.
@result_process_id should be set to NULL if you are not interested in the exit status of the child process
and you want the child process to be cleaned up automatically when it dies.
*/
int exec_program_async(const char **args, pid_t *result_process_id);
#if 0
int program_pipe_write(ProgramPipe *self, const char *data, size_t size);
int program_pipe_read(ProgramPipe *self, ProgramOutputCallback output_callback, void *userdata);
void program_pipe_close(ProgramPipe *self);
#endif
#ifdef __cplusplus
}
#endif
#endif
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