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Modify findBaseDir() for OS X compatibility #54

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Modify findBaseDir() for OS X compatibility #54

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13 changes: 12 additions & 1 deletion src/launcher.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,9 @@
#include <string>
#include <vector>
#include <algorithm>
#ifdef __APPLE__
#include <libproc.h>
#endif

#include "launcher.h"

Expand Down Expand Up @@ -72,6 +75,14 @@ int main(int argc, char **argv) {
// by calling readlink on /proc/<pid>/exe.
int findBaseDir(std::string* shinyServerPath) {

#ifdef __APPLE__
char execPath[PROC_PIDPATHINFO_MAXSIZE];
if (!proc_pidpath(getpid(), execPath, sizeof(execPath))) {
perror("proc_pidpath");
// unexpected error
return 2;
}
#else // assuming Linux
char execPath[MAXPATHLEN + 1];
int cn = snprintf(execPath, MAXPATHLEN + 1, "/proc/%d/exe", getpid());
if (cn < 0 || cn > MAXPATHLEN) {
Expand Down Expand Up @@ -107,7 +118,7 @@ int findBaseDir(std::string* shinyServerPath) {
}
std::copy(execBuf.begin(), execBuf.begin() + cb, execPath);
execPath[cb] = '\0';

#endif
*shinyServerPath = dirname(dirname(execPath));

return 0;
Expand Down