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Bindings: switch functions.

master
Philippe Pittoli 2023-01-17 04:32:24 +01:00
parent 472dd1f1ab
commit c8f34ef3c2
1 changed files with 55 additions and 19 deletions
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74
zig-impl/src/bindings.zig
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@ -14,12 +14,14 @@ export fn ipc_context_init (ptr: **Context) callconv(.C) i32 {
return 0;
}
export fn ipc_server_init(ctx: *Context, servicefd: *i32, service_name: [*]const u8, service_name_len: u16) callconv(.C) i32 {
/// Start a libipc service.
export fn ipc_service_init(ctx: *Context, servicefd: *i32, service_name: [*]const u8, service_name_len: u16) callconv(.C) i32 {
var streamserver = ctx.server_init (service_name[0..service_name_len]) catch return -1;
servicefd.* = streamserver.sockfd.?;
return 0;
}
/// Connect to a libipc service, possibly through IPCd.
export fn ipc_connect_service (ctx: *Context, servicefd: *i32, service_name: [*]const u8, service_name_len: u16) i32 {
var fd = ctx.connect_ipc (service_name[0..service_name_len]) catch return -1;
servicefd.* = fd;
@ -30,6 +32,7 @@ export fn ipc_context_deinit (ctx: *Context) callconv(.C) void {
ctx.deinit();
}
/// Write a message (no waiting).
export fn ipc_write (ctx: *Context, servicefd: i32, mcontent: [*]const u8, mlen: u32) i32 {
// TODO: better default length.
var buffer: [100000]u8 = undefined;
@ -40,6 +43,16 @@ export fn ipc_write (ctx: *Context, servicefd: i32, mcontent: [*]const u8, mlen:
return 0;
}
/// Schedule a message.
/// Use the same allocator as the context.
export fn ipc_schedule (ctx: *Context, servicefd: i32, mcontent: [*]const u8, mlen: u32) i32 {
var message = Message.init(servicefd, ctx.allocator, mcontent[0..mlen]) catch return -1;
ctx.schedule(message) catch return -2;
return 0;
}
/// Read a message from a file descriptor.
/// Buffer length will be changed to the size of the received message.
export fn ipc_read_fd (ctx: *Context, fd: i32, buffer: [*]u8, buflen: *usize) i32 {
var m = ctx.read_fd (fd) catch {return -1;} orelse return -2;
if (m.payload.len > buflen.*) return -3;
@ -52,12 +65,22 @@ export fn ipc_read_fd (ctx: *Context, fd: i32, buffer: [*]u8, buflen: *usize) i3
return 0;
}
export fn ipc_schedule (ctx: *Context, servicefd: i32, mcontent: [*]const u8, mlen: u32) i32 {
var message = Message.init(servicefd, ctx.allocator, mcontent[0..mlen]) catch return -1;
ctx.schedule(message) catch return -2;
/// Read a message.
/// Buffer length will be changed to the size of the received message.
export fn ipc_read (ctx: *Context, index: usize, buffer: [*]u8, buflen: *usize) i32 {
var m = ctx.read (index) catch {return -1;} orelse return -2;
if (m.payload.len > buflen.*) return -3;
buflen.* = m.payload.len;
var fbs = std.io.fixedBufferStream(buffer[0..buflen.*]);
var writer = fbs.writer();
_ = writer.write(m.payload) catch return -4;
return 0;
}
/// Wait for an event.
/// Buffer length will be changed to the size of the received message.
export fn ipc_wait_event(ctx: *Context, t: *u8, index: *usize, originfd: *i32, buffer: [*]u8, buflen: *usize) i32 {
var event = ctx.wait_event() catch return -1;
t.* = @enumToInt(event.t);
@ -77,20 +100,33 @@ export fn ipc_wait_event(ctx: *Context, t: *u8, index: *usize, originfd: *i32, b
return 0;
}
// pub fn read (ctx: *Context, index: usize) !?Message
//
//
// pub fn close_fd(ctx: *Context, fd: i32) !void
// pub fn close(ctx: *Context, index: usize) !void
/// Change the timer (ms).
export fn ipc_context_timer (ctx: *Context, timer: i32) void {
ctx.timer = timer;
}
export fn ipc_close_fd (ctx: *Context, fd: i32) i32 {
ctx.close_fd (fd) catch return -1;
return 0;
}
// // TODO (specifically in the bindings, not in the structure).
// //change_timer
//
// // Later.
// // pub fn add_external (ctx: *Context, newfd: i32) !void
// // pub fn add_switch(ctx: *Context, fd1: i32, fd2: i32) !void
// // pub fn set_switch_callbacks(ctx: *Context, fd: i
//
// // doubt it could really be useful
// //pub fn close_all(ctx: *Context) !void
export fn ipc_close (ctx: *Context, index: usize) i32 {
ctx.close (index) catch return -1;
return 0;
}
/// Add a new file descriptor to listen to.
/// The FD is marked as "external"; it isn't a simple libipc connection.
/// You may want to handle any operation on it by yourself.
export fn ipc_add_external (ctx: *Context, newfd: i32) i32 {
ctx.add_external (newfd) catch return -1;
return 0;
}
export fn ipc_add_switch (ctx: *Context, fd1: i32, fd2: i32) i32 {
ctx.add_switch (fd1, fd2) catch return -1;
return 0;
}
// Later.
// pub fn set_switch_callbacks