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37 * Implements functions from sysinfo.h.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_utility
51 #include <sys/types.h>
52 #ifdef HAVE_SYS_TIME_H
55 #if GMX_NATIVE_WINDOWS
66 #include "gromacs/utility/basedefinitions.h"
67 #include "gromacs/utility/gmxassert.h"
71 //! Static return value for cases when a string value is not available.
72 const char c_unknown[] = "unknown";
75 int gmx_gethostname(char *buf, size_t len)
77 GMX_RELEASE_ASSERT(len >= 8, "Input buffer is too short");
78 #if GMX_NATIVE_WINDOWS
80 if (GetComputerName(buf, &dlen))
84 #elif defined(HAVE_UNISTD_H) && !defined(__native_client__)
85 if (gethostname(buf, len-1) == 0)
91 strcpy(buf, c_unknown);
97 #if GMX_NATIVE_WINDOWS
106 #if defined(HAVE_UNISTD_H) && !defined(__MINGW32__)
113 int gmx_getusername(char *buf, size_t len)
115 GMX_RELEASE_ASSERT(len >= 8, "Input buffer is too short");
116 // TODO: nice_header() used getpwuid() instead; consider using getpwuid_r()
117 // here. If not, get rid of HAVE_PWD_H completely.
118 #if GMX_NATIVE_WINDOWS
120 if (GetUserName(buf, &dlen))
124 #elif defined(HAVE_UNISTD_H) && !__has_feature(memory_sanitizer) //MSAN Issue 83
125 if (!getlogin_r(buf, len))
131 strcpy(buf, c_unknown);
136 gmx_ctime_r(const time_t *clock, char *buf, size_t len)
140 ctime_s(buf, len, clock);
141 #elif GMX_NATIVE_WINDOWS
142 char *tmpbuf = ctime(clock);
143 strncpy(buf, tmpbuf, len-1);
145 #elif (defined(__sun))
150 ctime_r(clock, tmpbuf);
151 strncpy(buf, tmpbuf, len-1);
157 void gmx_format_current_time(char *buf, size_t len)
159 time_t clock = time(nullptr);
160 gmx_ctime_r(&clock, buf, len);
163 int gmx_set_nice(int level)
166 // TODO: This may not be reliable, but currently the return value is not
168 if (nice(level) != -1)
173 GMX_UNUSED_VALUE(level);