3 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 2006, 2007, 2009, 2010, 2011 Red Hat, Inc.
6 This file is part of Cygwin.
8 This software is a copyrighted work licensed under the terms of the
9 Cygwin license. Please consult the file "CYGWIN_LICENSE" for
14 #include <sys/sysinfo.h>
26 long max = getdtablesize ();
33 get_page_size (int in)
35 return wincap.allocation_granularity ();
39 get_nproc_values (int in)
42 SYSTEM_BASIC_INFORMATION sbi;
44 status = NtQuerySystemInformation (SystemBasicInformation, (PVOID) &sbi,
46 if (!NT_SUCCESS (status))
48 __seterrno_from_nt_status (status);
49 debug_printf ("NtQuerySystemInformation: status %p, %E", status);
54 case _SC_NPROCESSORS_CONF:
55 return sbi.NumberProcessors;
56 case _SC_NPROCESSORS_ONLN:
60 if (sbi.ActiveProcessors & 1)
62 while (sbi.ActiveProcessors >>= 1);
66 return sbi.NumberOfPhysicalPages
67 / (wincap.allocation_granularity () / wincap.page_size ());
76 SYSTEM_PERFORMANCE_INFORMATION spi;
78 status = NtQuerySystemInformation (SystemPerformanceInformation,
79 (PVOID) &spi, sizeof spi, NULL);
80 if (!NT_SUCCESS (status))
82 __seterrno_from_nt_status (status);
83 debug_printf ("NtQuerySystemInformation: status %d, %E", status);
86 return spi.AvailablePages
87 / (wincap.allocation_granularity () / wincap.page_size ());
90 enum sc_type { nsup, cons, func };
102 {cons, {c:ARG_MAX}}, /* 0, _SC_ARG_MAX */
103 {cons, {c:CHILD_MAX}}, /* 1, _SC_CHILD_MAX */
104 {cons, {c:CLOCKS_PER_SEC}}, /* 2, _SC_CLK_TCK */
105 {cons, {c:NGROUPS_MAX}}, /* 3, _SC_NGROUPS_MAX */
106 {func, {f:get_open_max}}, /* 4, _SC_OPEN_MAX */
107 {cons, {c:_POSIX_JOB_CONTROL}}, /* 5, _SC_JOB_CONTROL */
108 {cons, {c:_POSIX_SAVED_IDS}}, /* 6, _SC_SAVED_IDS */
109 {cons, {c:_POSIX_VERSION}}, /* 7, _SC_VERSION */
110 {func, {f:get_page_size}}, /* 8, _SC_PAGESIZE */
111 {func, {f:get_nproc_values}}, /* 9, _SC_NPROCESSORS_CONF */
112 {func, {f:get_nproc_values}}, /* 10, _SC_NPROCESSORS_ONLN */
113 {func, {f:get_nproc_values}}, /* 11, _SC_PHYS_PAGES */
114 {func, {f:get_avphys}}, /* 12, _SC_AVPHYS_PAGES */
115 {cons, {c:MQ_OPEN_MAX}}, /* 13, _SC_MQ_OPEN_MAX */
116 {cons, {c:MQ_PRIO_MAX}}, /* 14, _SC_MQ_PRIO_MAX */
117 {cons, {c:RTSIG_MAX}}, /* 15, _SC_RTSIG_MAX */
118 {cons, {c:-1L}}, /* 16, _SC_SEM_NSEMS_MAX */
119 {cons, {c:SEM_VALUE_MAX}}, /* 17, _SC_SEM_VALUE_MAX */
120 {cons, {c:SIGQUEUE_MAX}}, /* 18, _SC_SIGQUEUE_MAX */
121 {cons, {c:TIMER_MAX}}, /* 19, _SC_TIMER_MAX */
122 {nsup, {c:0}}, /* 20, _SC_TZNAME_MAX */
123 {cons, {c:-1L}}, /* 21, _SC_ASYNCHRONOUS_IO */
124 {cons, {c:_POSIX_FSYNC}}, /* 22, _SC_FSYNC */
125 {cons, {c:_POSIX_MAPPED_FILES}}, /* 23, _SC_MAPPED_FILES */
126 {cons, {c:-1L}}, /* 24, _SC_MEMLOCK */
127 {cons, {c:_POSIX_MEMLOCK_RANGE}}, /* 25, _SC_MEMLOCK_RANGE */
128 {cons, {c:_POSIX_MEMORY_PROTECTION}}, /* 26, _SC_MEMORY_PROTECTION */
129 {cons, {c:_POSIX_MESSAGE_PASSING}}, /* 27, _SC_MESSAGE_PASSING */
130 {cons, {c:-1L}}, /* 28, _SC_PRIORITIZED_IO */
131 {cons, {c:_POSIX_REALTIME_SIGNALS}}, /* 29, _SC_REALTIME_SIGNALS */
132 {cons, {c:_POSIX_SEMAPHORES}}, /* 30, _SC_SEMAPHORES */
133 {cons, {c:_POSIX_SHARED_MEMORY_OBJECTS}}, /* 31, _SC_SHARED_MEMORY_OBJECTS */
134 {cons, {c:_POSIX_SYNCHRONIZED_IO}}, /* 32, _SC_SYNCHRONIZED_IO */
135 {cons, {c:_POSIX_TIMERS}}, /* 33, _SC_TIMERS */
136 {nsup, {c:0}}, /* 34, _SC_AIO_LISTIO_MAX */
137 {nsup, {c:0}}, /* 35, _SC_AIO_MAX */
138 {nsup, {c:0}}, /* 36, _SC_AIO_PRIO_DELTA_MAX */
139 {nsup, {c:0}}, /* 37, _SC_DELAYTIMER_MAX */
140 {cons, {c:PTHREAD_KEYS_MAX}}, /* 38, _SC_THREAD_KEYS_MAX */
141 {cons, {c:PTHREAD_STACK_MIN}}, /* 39, _SC_THREAD_STACK_MIN */
142 {cons, {c:-1L}}, /* 40, _SC_THREAD_THREADS_MAX */
143 {cons, {c:TTY_NAME_MAX}}, /* 41, _SC_TTY_NAME_MAX */
144 {cons, {c:_POSIX_THREADS}}, /* 42, _SC_THREADS */
145 {cons, {c:_POSIX_THREAD_ATTR_STACKADDR}},/* 43, _SC_THREAD_ATTR_STACKADDR */
146 {cons, {c:_POSIX_THREAD_ATTR_STACKSIZE}},/* 44, _SC_THREAD_ATTR_STACKSIZE */
147 {cons, {c:_POSIX_THREAD_PRIORITY_SCHEDULING}}, /* 45, _SC_THREAD_PRIORITY_SCHEDULING */
148 {cons, {c:-1L}}, /* 46, _SC_THREAD_PRIO_INHERIT */
149 {cons, {c:-1L}}, /* 47, _SC_THREAD_PRIO_PROTECT */
150 {cons, {c:_POSIX_THREAD_PROCESS_SHARED}}, /* 48, _SC_THREAD_PROCESS_SHARED */
151 {cons, {c:_POSIX_THREAD_SAFE_FUNCTIONS}}, /* 49, _SC_THREAD_SAFE_FUNCTIONS */
152 {cons, {c:16384L}}, /* 50, _SC_GETGR_R_SIZE_MAX */
153 {cons, {c:16384L}}, /* 51, _SC_GETPW_R_SIZE_MAX */
154 {cons, {c:LOGIN_NAME_MAX}}, /* 52, _SC_LOGIN_NAME_MAX */
155 {cons, {c:PTHREAD_DESTRUCTOR_ITERATIONS}}, /* 53, _SC_THREAD_DESTRUCTOR_ITERATIONS */
156 {cons, {c:_POSIX_ADVISORY_INFO}}, /* 54, _SC_ADVISORY_INFO */
157 {cons, {c:ATEXIT_MAX}}, /* 55, _SC_ATEXIT_MAX */
158 {cons, {c:-1L}}, /* 56, _SC_BARRIERS */
159 {cons, {c:BC_BASE_MAX}}, /* 57, _SC_BC_BASE_MAX */
160 {cons, {c:BC_DIM_MAX}}, /* 58, _SC_BC_DIM_MAX */
161 {cons, {c:BC_SCALE_MAX}}, /* 59, _SC_BC_SCALE_MAX */
162 {cons, {c:BC_STRING_MAX}}, /* 60, _SC_BC_STRING_MAX */
163 {cons, {c:_POSIX_CLOCK_SELECTION}}, /* 61, _SC_CLOCK_SELECTION */
164 {nsup, {c:0}}, /* 62, _SC_COLL_WEIGHTS_MAX */
165 {cons, {c:_POSIX_CPUTIME}}, /* 63, _SC_CPUTIME */
166 {cons, {c:EXPR_NEST_MAX}}, /* 64, _SC_EXPR_NEST_MAX */
167 {cons, {c:HOST_NAME_MAX}}, /* 65, _SC_HOST_NAME_MAX */
168 {cons, {c:IOV_MAX}}, /* 66, _SC_IOV_MAX */
169 {cons, {c:_POSIX_IPV6}}, /* 67, _SC_IPV6 */
170 {cons, {c:LINE_MAX}}, /* 68, _SC_LINE_MAX */
171 {cons, {c:_POSIX_MONOTONIC_CLOCK}}, /* 69, _SC_MONOTONIC_CLOCK */
172 {cons, {c:_POSIX_RAW_SOCKETS}}, /* 70, _SC_RAW_SOCKETS */
173 {cons, {c:_POSIX_READER_WRITER_LOCKS}}, /* 71, _SC_READER_WRITER_LOCKS */
174 {cons, {c:_POSIX_REGEXP}}, /* 72, _SC_REGEXP */
175 {cons, {c:RE_DUP_MAX}}, /* 73, _SC_RE_DUP_MAX */
176 {cons, {c:_POSIX_SHELL}}, /* 74, _SC_SHELL */
177 {cons, {c:-1L}}, /* 75, _SC_SPAWN */
178 {cons, {c:_POSIX_SPIN_LOCKS}}, /* 76, _SC_SPIN_LOCKS */
179 {cons, {c:-1L}}, /* 77, _SC_SPORADIC_SERVER */
180 {nsup, {c:0}}, /* 78, _SC_SS_REPL_MAX */
181 {cons, {c:SYMLOOP_MAX}}, /* 79, _SC_SYMLOOP_MAX */
182 {cons, {c:_POSIX_THREAD_CPUTIME}}, /* 80, _SC_THREAD_CPUTIME */
183 {cons, {c:-1L}}, /* 81, _SC_THREAD_SPORADIC_SERVER */
184 {cons, {c:-1L}}, /* 82, _SC_TIMEOUTS */
185 {cons, {c:-1L}}, /* 83, _SC_TRACE */
186 {cons, {c:-1L}}, /* 84, _SC_TRACE_EVENT_FILTER */
187 {nsup, {c:0}}, /* 85, _SC_TRACE_EVENT_NAME_MAX */
188 {cons, {c:-1L}}, /* 86, _SC_TRACE_INHERIT */
189 {cons, {c:-1L}}, /* 87, _SC_TRACE_LOG */
190 {nsup, {c:0}}, /* 88, _SC_TRACE_NAME_MAX */
191 {nsup, {c:0}}, /* 89, _SC_TRACE_SYS_MAX */
192 {nsup, {c:0}}, /* 90, _SC_TRACE_USER_EVENT_MAX */
193 {cons, {c:-1L}}, /* 91, _SC_TYPED_MEMORY_OBJECTS */
194 {cons, {c:-1L}}, /* 92, _SC_V6_ILP32_OFF32 */
195 {cons, {c:_POSIX_V6_ILP32_OFFBIG}}, /* 93, _SC_V6_ILP32_OFFBIG */
196 {cons, {c:-1L}}, /* 94, _SC_V6_LP64_OFF64 */
197 {cons, {c:-1L}}, /* 95, _SC_V6_LPBIG_OFFBIG */
198 {cons, {c:_XOPEN_CRYPT}}, /* 96, _SC_XOPEN_CRYPT */
199 {cons, {c:_XOPEN_ENH_I18N}}, /* 97, _SC_XOPEN_ENH_I18N */
200 {cons, {c:-1L}}, /* 98, _SC_XOPEN_LEGACY */
201 {cons, {c:-1L}}, /* 99, _SC_XOPEN_REALTIME */
202 {cons, {c:STREAM_MAX}}, /* 100, _SC_STREAM_MAX */
203 {cons, {c:_POSIX_PRIORITY_SCHEDULING}}, /* 101, _SC_PRIORITY_SCHEDULING */
204 {cons, {c:-1L}}, /* 102, _SC_XOPEN_REALTIME_THREADS */
205 {cons, {c:_XOPEN_SHM}}, /* 103, _SC_XOPEN_SHM */
206 {cons, {c:-1L}}, /* 104, _SC_XOPEN_STREAMS */
207 {cons, {c:-1L}}, /* 105, _SC_XOPEN_UNIX */
208 {cons, {c:_XOPEN_VERSION}}, /* 106, _SC_XOPEN_VERSION */
209 {cons, {c:_POSIX2_CHAR_TERM}}, /* 107, _SC_2_CHAR_TERM */
210 {cons, {c:_POSIX2_C_BIND}}, /* 108, _SC_2_C_BIND */
211 {cons, {c:_POSIX2_C_BIND}}, /* 109, _SC_2_C_DEV */
212 {cons, {c:-1L}}, /* 110, _SC_2_FORT_DEV */
213 {cons, {c:-1L}}, /* 111, _SC_2_FORT_RUN */
214 {cons, {c:-1L}}, /* 112, _SC_2_LOCALEDEF */
215 {cons, {c:-1L}}, /* 113, _SC_2_PBS */
216 {cons, {c:-1L}}, /* 114, _SC_2_PBS_ACCOUNTING */
217 {cons, {c:-1L}}, /* 115, _SC_2_PBS_CHECKPOINT */
218 {cons, {c:-1L}}, /* 116, _SC_2_PBS_LOCATE */
219 {cons, {c:-1L}}, /* 117, _SC_2_PBS_MESSAGE */
220 {cons, {c:-1L}}, /* 118, _SC_2_PBS_TRACK */
221 {cons, {c:_POSIX2_SW_DEV}}, /* 119, _SC_2_SW_DEV */
222 {cons, {c:_POSIX2_UPE}}, /* 120, _SC_2_UPE */
223 {cons, {c:_POSIX2_VERSION}}, /* 121, _SC_2_VERSION */
224 {cons, {c:-1L}}, /* 122, _SC_THREAD_ROBUST_PRIO_INHERIT */
225 {cons, {c:-1L}}, /* 123, _SC_THREAD_ROBUST_PRIO_PROTECT */
226 {cons, {c:-1L}}, /* 124, _SC_XOPEN_UUCP */
229 #define SC_MIN _SC_ARG_MAX
230 #define SC_MAX _SC_XOPEN_UUCP
232 /* sysconf: POSIX 4.8.1.1 */
233 /* Allows a portable app to determine quantities of resources or
234 presence of an option at execution time. */
238 if (in >= SC_MIN && in <= SC_MAX)
240 switch (sca[in].type)
247 return sca[in].f (in);
250 /* Unimplemented sysconf name or invalid option value. */
255 #define ls(s) sizeof(s),s
263 {ls ("/bin:/usr/bin")}, /* _CS_PATH */
264 {0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_CFLAGS */
265 {0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_LDFLAGS */
266 {0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_LIBS */
267 {0, NULL}, /* _CS_XBS5_ILP32_OFF32_LINTFLAGS */
268 {ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS */
269 {ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS */
270 {ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_LIBS */
271 {ls ("")}, /* _CS_XBS5_ILP32_OFFBIG_LINTFLAGS */
272 {0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_CFLAGS */
273 {0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_LDFLAGS */
274 {0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_LIBS */
275 {0, NULL}, /* _CS_XBS5_LP64_OFF64_LINTFLAGS */
276 {0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS */
277 {0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS */
278 {0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LIBS */
279 {0, NULL}, /* _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS */
280 {ls ("POSIX_V6_ILP32_OFFBIG")}, /* _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS */
281 {ls ("")}, /* _CS_POSIX_V7_THREADS_CFLAGS */
282 {ls ("")}, /* _CS_POSIX_V7_THREADS_LDFLAGS */
283 {ls ("POSIXLY_CORRECT=1")}, /* _CS_V7_ENV */
286 #define CS_MIN _CS_PATH
287 #define CS_MAX _CS_V7_ENV
290 confstr (int in, char *buf, size_t len)
292 if (in >= CS_MIN && in <= CS_MAX)
294 if (csa[in].l && len)
297 strncat (buf, csa[in].s, min (len, csa[in].l) - 1);
301 /* Invalid option value. */
307 get_nprocs_conf (void)
309 return get_nproc_values (_SC_NPROCESSORS_CONF);
315 return get_nproc_values (_SC_NPROCESSORS_ONLN);
319 get_phys_pages (void)
321 return get_nproc_values (_SC_PHYS_PAGES);
325 get_avphys_pages (void)
327 return get_avphys (_SC_AVPHYS_PAGES);
331 sysinfo (struct sysinfo *info)
333 unsigned long long uptime = 0ULL, totalram = 0ULL, freeram = 0ULL,
334 totalswap = 0ULL, freeswap = 0ULL;
335 MEMORYSTATUSEX memory_status;
336 PSYSTEM_PAGEFILE_INFORMATION spi = NULL;
337 ULONG sizeof_spi = 512;
338 PSYSTEM_TIME_OF_DAY_INFORMATION stodi = NULL;
339 const ULONG sizeof_stodi = sizeof (SYSTEM_TIME_OF_DAY_INFORMATION);
340 NTSTATUS status = STATUS_SUCCESS;
341 winpids pids ((DWORD) 0);
349 stodi = (PSYSTEM_TIME_OF_DAY_INFORMATION) malloc (sizeof_stodi);
350 status = NtQuerySystemInformation (SystemTimeOfDayInformation, (PVOID) stodi,
352 if (NT_SUCCESS (status))
353 uptime = (stodi->CurrentTime.QuadPart - stodi->BootTime.QuadPart)
356 debug_printf ("NtQuerySystemInformation(SystemTimeOfDayInformation), "
357 "status %p", status);
362 memory_status.dwLength = sizeof (MEMORYSTATUSEX);
363 GlobalMemoryStatusEx (&memory_status);
364 totalram = memory_status.ullTotalPhys / wincap.page_size ();
365 freeram = memory_status.ullAvailPhys / wincap.page_size ();
367 spi = (PSYSTEM_PAGEFILE_INFORMATION) malloc (sizeof_spi);
370 status = NtQuerySystemInformation (SystemPagefileInformation, (PVOID) spi,
371 sizeof_spi, &sizeof_spi);
372 if (status == STATUS_INFO_LENGTH_MISMATCH)
375 spi = (PSYSTEM_PAGEFILE_INFORMATION) malloc (sizeof_spi);
377 status = NtQuerySystemInformation (SystemPagefileInformation,
378 (PVOID) spi, sizeof_spi,
382 if (!spi || !NT_SUCCESS (status))
384 debug_printf ("NtQuerySystemInformation(SystemPagefileInformation), "
385 "status %p", status);
386 totalswap = (memory_status.ullTotalPageFile - memory_status.ullTotalPhys)
387 / wincap.page_size ();
388 freeswap = (memory_status.ullAvailPageFile - memory_status.ullTotalPhys)
389 / wincap.page_size ();
393 PSYSTEM_PAGEFILE_INFORMATION spp = spi;
396 totalswap += spp->CurrentSize;
397 freeswap += spp->CurrentSize - spp->TotalUsed;
399 while (spp->NextEntryOffset
400 && (spp = (PSYSTEM_PAGEFILE_INFORMATION)
401 ((char *) spp + spp->NextEntryOffset)));
406 info->uptime = (long) uptime;
407 info->totalram = (unsigned long) totalram;
408 info->freeram = (unsigned long) freeram;
409 info->totalswap = (unsigned long) totalswap;
410 info->freeswap = (unsigned long) freeswap;
411 info->procs = (unsigned short) pids.npids;
412 info->mem_unit = (unsigned int) wincap.page_size ();
414 /* FIXME: unsupported */
415 info->loads[0] = 0UL;
416 info->loads[1] = 0UL;
417 info->loads[2] = 0UL;
418 info->sharedram = 0UL;
419 info->bufferram = 0UL;
420 info->totalhigh = 0UL;
421 info->freehigh = 0UL;