fork.h

#ifndef CRTX_FORK_H
#define CRTX_FORK_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * Mario Kicherer (dev@kicherer.org) 2019
 *
 */
 
#include "core.h"
#include "signals.h"
 
#define CRTX_EVENT_TYPE_FAMILY_FORK (600)
#define CRTX_FORK_ET_FORK_DONE_PARENT (CRTX_EVENT_TYPE_FAMILY_FORK + 1)
#define CRTX_FORK_ET_CHILD_STOPPED (CRTX_EVENT_TYPE_FAMILY_FORK + 2)
#define CRTX_FORK_ET_CHILD_KILLED (CRTX_EVENT_TYPE_FAMILY_FORK + 3)
 
#define CRTX_FORK_CHILD_STOPPED (1<<0)
 
struct crtx_fork_listener {
    struct crtx_listener_base base;
    
//  struct crtx_signals_listener signal_lstnr;
//  sigchld_cb sigchld_cb;
    
    pid_t pid;
    int flags;
    
    char *user;
    char *group;
    
    void (*reinit_cb)(void *cb_data);
    void *reinit_cb_data;
    
    void (*pre_fork_callback)(void *cb_data);
    void *pre_fork_cb_data;
    
    void (*post_fork_child_callback)(void *cb_data);
    void *post_fork_child_cb_data;
    void (*post_fork_parent_callback)(void *cb_data);
    void *post_fork_parent_cb_data;
    
    void *sigchld_data;
    
    // TODO testing! If we do this, we might need to prevent shutdown of certain
    // listeners in the child to avoid changing the state of the parent process
    // as well.
    char reinit_immediately;
};
 
struct crtx_listener_base *crtx_setup_fork_listener(void *options);
CRTX_DECLARE_ALLOC_FUNCTION(fork)
 
void crtx_fork_init();
void crtx_fork_finish();
 
#ifdef __cplusplus
}
#endif
 
#endif