imv/src/ipc.h at master · somini/imv

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#ifndef IMV_IPC_H

#define IMV_IPC_H

#include <unistd.h>

/* imv_ipc provides a listener on a unix socket that listens for commands.

* When a command is received, a callback function is called.

struct imv_ipc;

/* Creates an imv_ipc instance */

struct imv_ipc *imv_ipc_create(void);

/* Cleans up an imv_ipc instance */

void imv_ipc_free(struct imv_ipc *ipc);

typedef void (*imv_ipc_callback)(const char *command, void *data);

/* When a command is received, imv_ipc will call the callback function passed

* in. Only one callback function at a time can be connected. The data argument

* is passed back to the callback to allow for context passing

void imv_ipc_set_command_callback(struct imv_ipc *ipc,

imv_ipc_callback callback, void *data);

/* Given a pid, emits the path of the unix socket that would connect to an imv

* instance with that pid

void imv_ipc_path(char *buf, size_t len, int pid);

#endif