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annotate dep/animone/src/util/osx.cc @ 271:f01b6e9c8fa2

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dep/animone: make OS X code build
author Paper <paper@paper.us.eu.org>
date Sun, 14 Apr 2024 22:28:50 -0400
parents 382b50754fe4
children
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1 #include "animone/util/osx.h"
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2
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3 #include <memory>
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4 #include <string>
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5
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6 #include <libproc.h>
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7 #include <sys/sysctl.h>
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8
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9 namespace animone::internal::osx::util {
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10
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11 static bool GetProcessNameFromProcPidPath(pid_t pid, std::string& result) {
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12 result.assign(PROC_PIDPATHINFO_MAXSIZE, '\0');
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14 int ret = proc_pidpath(pid, result.data(), result.size() * sizeof(char));
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15 if (ret <= 0)
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16 return false;
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18 /* find the last slash, if there's none, we're done here */
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19 size_t last_slash = result.rfind('/');
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20 if (last_slash == std::string::npos)
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21 return true;
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23 result.erase(0, last_slash + 1);
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24 return true;
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25 }
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27 static bool GetProcessNameFromProcName(pid_t pid, std::string& result) {
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28 result.assign(2 * MAXCOMLEN, '\0');
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30 int size = proc_name(pid, &result.front(), result.length());
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32 /* if size is MAXCOMLEN or 2 * MAXCOMLEN, assume
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33 * this method won't work and our result is truncated */
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34 if (size <= 0 || size == MAXCOMLEN || size == 2 * MAXCOMLEN)
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35 return false;
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37 result.resize(size);
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38 return true;
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39 }
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41 bool GetProcessName(pid_t pid, std::string& result) {
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42 if (GetProcessNameFromProcName(pid, result))
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43 return true;
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45 if (GetProcessNameFromProcPidPath(pid, result))
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46 return true;
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47
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48 return false;
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49 }
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51 } // namespace animone::internal::osx::util