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don't use a global on the zig side (surgical linking can't do those yet)

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Folkert 2022-11-05 14:08:19 +01:00
parent 92cc120c7f
commit 94cc2971a3
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5 changed files with 43 additions and 24 deletions
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30
crates/compiler/builtins/bitcode/src/expect.zig
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@ -19,10 +19,37 @@ pub fn setSharedBuffer(ptr: [*]u8, length: usize) callconv(.C) usize {
return 0;
}
pub fn expectFailedStart() callconv(.C) [*]u8 {
pub fn expectFailedStartSharedBuffer() callconv(.C) [*]u8 {
return SHARED_BUFFER.ptr;
}
pub fn expectFailedStartSharedFile() callconv(.C) [*]u8 {
// IMPORTANT: shared memory object names must begin with / and contain no other slashes!
var name: [100]u8 = undefined;
_ = std.fmt.bufPrint(name[0..100], "/roc_expect_buffer_{}\x00", .{roc_getppid()}) catch unreachable;
if (builtin.os.tag == .macos or builtin.os.tag == .linux) {
const shared_fd = roc_shm_open(@ptrCast(*const i8, &name), O_RDWR | O_CREAT, 0o666);
const length = 4096;
const shared_ptr = roc_mmap(
null,
length,
PROT_WRITE,
MAP_SHARED,
shared_fd,
0,
);
const ptr = @ptrCast([*]u8, shared_ptr);
return ptr;
} else {
unreachable;
}
}
extern fn roc_send_signal(pid: c_int, sig: c_int) c_int;
extern fn roc_shm_open(name: *const i8, oflag: c_int, mode: c_uint) c_int;
extern fn roc_mmap(addr: ?*anyopaque, length: c_uint, prot: c_int, flags: c_int, fd: c_int, offset: c_uint) *anyopaque;
@ -30,7 +57,6 @@ extern fn roc_getppid() c_int;
pub fn readSharedBufferEnv() callconv(.C) void {
if (builtin.os.tag == .macos or builtin.os.tag == .linux) {
// const name = "/roc_expect_buffer";
// IMPORTANT: shared memory object names must begin with / and contain no other slashes!
var name: [100]u8 = undefined;