tabs and tab overview

client-protocol.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+struct client_string {
+    uint16_t len;
+    /* char str[static len]; */
+};
+
+struct client_data {
+    bool hold:1;
+    bool no_wait:1;
+    bool xdga_token:1;
+    uint8_t reserved:5;
+
+    uint8_t token_len;
+    uint16_t cwd_len;
+    uint16_t override_count;
+    uint16_t argc;
+    uint16_t env_count;
+
+    /* char cwd[static cwd_len]; */
+    /* char token[static token_len]; */
+    /* struct client_string overrides[static override_count]; */
+    /* struct client_string argv[static argc]; */
+    /* struct client_string envp[static env_count]; */
+} __attribute__((packed));
+
+_Static_assert(sizeof(struct client_data) == 10, "protocol struct size error");
+
+enum client_ipc_code {
+    FOOT_IPC_SIGUSR,
+};
+
+struct client_ipc_hdr {
+    enum client_ipc_code ipc_code;
+    uint8_t size;
+} __attribute__((packed));
+
+
+struct client_ipc_sigusr {
+    int signo;
+} __attribute__((packed));