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Fix mmap on macOS x64

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This commit is contained in:
Jarred Sumner
2022-04-02 02:17:22 -07:00
parent db39c8e109
commit 95d68b26a6
2 changed files with 27 additions and 29 deletions
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24
src/javascript/jsc/api/bun.zig
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@@ -1179,24 +1179,26 @@ pub fn mmapFile(
var buf: [bun.MAX_PATH_BYTES]u8 = undefined;
const path = getFilePath(ctx, arguments[0..@minimum(1, arguments.len)], &buf, exception) orelse return null;
args.eat();
buf[path.len] = 0;
const buf_z: [:0]const u8 = buf[0..path.len :0];
const flags = v: {
_ = args.nextEat();
const opts = args.nextEat() orelse break :v std.os.MAP.SHARED;
const sync_flags: u32 = if (@hasDecl(std.os.MAP, "SYNC")) std.os.MAP.SYNC | std.os.MAP.SHARED_VALIDATE else 0;
const file_flags: u32 = if (@hasDecl(std.os.MAP, "FILE")) std.os.MAP.FILE else 0;
// Conforming applications must specify either MAP_PRIVATE or MAP_SHARED.
var flags = file_flags;
if (args.nextEat()) |opts| {
const sync = opts.get(ctx.ptr(), "sync") orelse JSC.JSValue.jsBoolean(false);
const shared = opts.get(ctx.ptr(), "shared") orelse JSC.JSValue.jsBoolean(true);
const sync_flags = if (@hasDecl(std.os, "SYNC")) std.os.MAP.SYNC | std.os.MAP.SHARED_VALIDATE else 0;
var flags: u32 = 0;
if (sync.toBoolean()) flags |= sync_flags;
if (shared.toBoolean()) flags |= std.os.MAP.SHARED else flags |= std.os.MAP.PRIVATE;
break :v flags;
};
flags |= @as(u32, if (sync.toBoolean()) sync_flags else 0);
flags |= @as(u32, if (shared.toBoolean()) std.os.MAP.SHARED else std.os.MAP.PRIVATE);
} else {
flags |= std.os.MAP.SHARED;
}
const map = switch (JSC.Node.Syscall.mmapFile(buf_z, flags)) {
.result => |map| map,