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Add swaymsg-compatible IPC interface with labmsg client

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stormshadow 2026-04-15 23:25:06 +05:30 • committed by Anirvan Banerjee
parent bce14a5ad7
commit 8328c05041
20 changed files with 2291 additions and 11 deletions
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include/ipc.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef LABWC_IPC_H
#define LABWC_IPC_H
#include <stdbool.h>
#include <stdint.h>
#include <wayland-util.h>
struct view;
struct workspace;
/* Wire protocol */
#define IPC_MAGIC "labwc-ipc"
#define IPC_MAGIC_LEN 9
#define IPC_HEADER_SIZE (IPC_MAGIC_LEN + 4 + 4) /* 17 bytes */
/* Message types (same numbering as sway/i3) */
enum ipc_msg_type {
IPC_RUN_COMMAND = 0,
IPC_GET_WORKSPACES = 1,
IPC_SUBSCRIBE = 2,
IPC_GET_OUTPUTS = 3,
IPC_GET_TREE = 4,
IPC_GET_MARKS = 5,
IPC_GET_BAR_CONFIG = 6,
IPC_GET_VERSION = 7,
IPC_GET_BINDING_MODES = 8,
IPC_GET_CONFIG = 9,
IPC_SEND_TICK = 10,
IPC_SYNC = 11,
IPC_GET_BINDING_STATE = 12,
IPC_GET_INPUTS = 100,
IPC_GET_SEATS = 101,
};
/* Event types (bit 31 set) */
#define IPC_EVENT_FLAG 0x80000000
enum ipc_event_type {
IPC_EVENT_WORKSPACE = (IPC_EVENT_FLAG | 0),
IPC_EVENT_OUTPUT = (IPC_EVENT_FLAG | 1),
IPC_EVENT_WINDOW = (IPC_EVENT_FLAG | 3),
IPC_EVENT_SHUTDOWN = (IPC_EVENT_FLAG | 6),
IPC_EVENT_TICK = (IPC_EVENT_FLAG | 7),
};
/* Subscription bitmask */
#define IPC_SUB_WORKSPACE (1 << 0)
#define IPC_SUB_OUTPUT (1 << 1)
#define IPC_SUB_WINDOW (1 << 3)
#define IPC_SUB_SHUTDOWN (1 << 6)
#define IPC_SUB_TICK (1 << 7)
struct ipc_client {
struct wl_list link; /* server.ipc_clients */
int fd;
struct wl_event_source *readable;
struct wl_event_source *writable;
uint32_t subscriptions;
/* Write buffer for partial writes */
char *write_buf;
size_t write_buf_len;
size_t write_buf_cap;
};
/* Server lifecycle */
void ipc_init(void);
void ipc_finish(void);
/* Event emitters (called from compositor hooks) */
void ipc_event_workspace(const char *change, struct workspace *current,
struct workspace *old);
void ipc_event_output(const char *change);
void ipc_event_window(const char *change, struct view *view);
void ipc_event_shutdown(void);
#endif /* LABWC_IPC_H */