Function selfExeDirPathAlloc [src]

selfExeDirPath except allocates the result on the heap. Caller owns returned memory.

Prototype

pub fn selfExeDirPathAlloc(allocator: Allocator) ![]u8

Parameters

allocator: Allocator

Source

  pub fn selfExeDirPathAlloc(allocator: Allocator) ![]u8 {
    // Use of max_path_bytes here is justified as, at least on one tested Linux
    // system, readlink will completely fail to return a result larger than
    // PATH_MAX even if given a sufficiently large buffer. This makes it
    // fundamentally impossible to get the selfExeDirPath of a program running
    // in a very deeply nested directory chain in this way.
    // TODO(#4812): Investigate other systems and whether it is possible to get
    // this path by trying larger and larger buffers until one succeeds.
    var buf: [max_path_bytes]u8 = undefined;
    return allocator.dupe(u8, try selfExeDirPath(&buf));
}  