libipc/libipc.h

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#ifndef LIBIPC
#define LIBIPC
#include <stdint.h>
enum event_types {
ERROR = 0 // A problem occured.
, CONNECTION = 1 // New user.
, DISCONNECTION = 2 // User disconnected.
, MESSAGE_RX = 3 // New message.
, MESSAGE_TX = 4 // Message sent.
, TIMER = 5 // Timeout in the poll(2) function.
, EXTERNAL = 6 // Message received from a non IPC socket.
, SWITCH_RX = 7 // Message received from a switched FD.
, SWITCH_TX = 8 // Message sent to a switched fd.
};
// Return type of callback functions when switching.
enum cb_event_types {
CB_NO_ERROR = 0 // No error. A message was generated.
, CB_ERROR = 1 // Generic error.
, CB_FD_CLOSING = 2 // The fd is closing.
, CB_IGNORE = 3 // The message should be ignored (protocol specific).
};
int ipc_context_init (void** ptr);
int ipc_service_init (void* ctx, int* servicefd, const char* service_name, uint16_t service_name_len);
int ipc_connect_service (void* ctx, int* servicefd, const char* service_name, uint16_t service_name_len);
void ipc_context_deinit (void** ctx);
int ipc_write (void* ctx, int servicefd, char* mcontent, uint32_t mlen);
int ipc_schedule (void* ctx, int servicefd, const char* mcontent, uint32_t mlen);
int ipc_read_fd (void* ctx, int fd, char* buffer, size_t* buflen);
int ipc_read (void* ctx, size_t index, char* buffer, size_t* buflen);
int ipc_wait_event(void* ctx, char* t, size_t* index, int* originfd, char* buffer, size_t* buflen);
void ipc_context_timer (void* ctx, int timer);
int ipc_close_fd (void* ctx, int fd);
int ipc_close (void* ctx, size_t index);
int ipc_close_all (void* ctx);
// Switch functions (for "protocol" services, such as TCPd).
int ipc_add_external (void* ctx, int newfd);
int ipc_add_switch (void* ctx, int fd1, int fd2);
int ipc_set_switch_callbacks (void* ctx, int fd
, enum cb_event_types (*in (int orig, const char *payload, uint32_t *mlen))
, enum cb_event_types (*out(int dest, char *payload, uint32_t mlen)));
#endif