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getSelfExe(): Support macOS

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This commit is contained in:
Eelco Dolstra 2022-06-23 01:32:17 +02:00
parent 184f4e40de
commit 1e55ee2961
1 changed files with 9 additions and 1 deletions
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10
src/libutil/util.cc
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@ -29,6 +29,7 @@
#ifdef __APPLE__
#include <sys/syscall.h>
#include <mach-o/dyld.h>
#endif
#ifdef __linux__
@ -635,10 +636,17 @@ Path getDataDir()
std::optional<Path> getSelfExe()
{
static std::optional<Path> cached = []()
static auto cached = []() -> std::optional<Path>
{
#if __linux__
return readLink("/proc/self/exe");
#elif __APPLE__
char buf[1024];
uint32_t size = sizeof(buf);
if (_NSGetExecutablePath(buf, &size) == 0)
return buf;
else
return std::nullopt;
#else
return std::nullopt;
#endif