Updates to tuklib_physmem and tuklib_cpucores.

Don't use #error to generate compile error, because some
compilers actually don't take it as an error. This fixes
tuklib_physmem on IRIX.

Fix incorrect error check for sysconf() return values.

Add AIX, HP-UX, and Tru64 specific code to detect the
amount RAM.

Add HP-UX specific code to detect the number of CPU cores.

Thanks a lot to Peter O'Gorman for initial patches,
testing, and debugging these fixes.

2 files changed, 44 insertions, 3 deletions

diff --git a/src/common/tuklib_cpucores.c b/src/common/tuklib_cpucores.c
index e35d9bc7..1da13df7 100644
--- a/src/common/tuklib_cpucores.c
+++ b/src/common/tuklib_cpucores.c
@@ -20,6 +20,11 @@
 
 #elif defined(TUKLIB_CPUCORES_SYSCONF)
 #	include <unistd.h>
+
+// HP-UX
+#elif defined(TUKLIB_CPUCORES_PSTAT_GETDYNAMIC)
+#	include <sys/param.h>
+#	include <sys/pstat.h>
 #endif
 
 
@@ -34,7 +39,7 @@ tuklib_cpucores(void)
 	size_t cpus_size = sizeof(cpus);
 	if (sysctl(name, 2, &cpus, &cpus_size, NULL, 0) != -1
 			&& cpus_size == sizeof(cpus) && cpus > 0)
-		ret = (uint32_t)cpus;
+		ret = cpus;
 
 #elif defined(TUKLIB_CPUCORES_SYSCONF)
 #	ifdef _SC_NPROCESSORS_ONLN
@@ -45,7 +50,12 @@ tuklib_cpucores(void)
 	const long cpus = sysconf(_SC_NPROC_ONLN);
 #	endif
 	if (cpus > 0)
-		ret = (uint32_t)cpus;
+		ret = cpus;
+
+#elif defined(TUKLIB_CPUCORES_PSTAT_GETDYNAMIC)
+	struct pst_dynamic pst;
+	if (pstat_getdynamic(&pst, sizeof(pst), 1, 0) != -1)
+		ret = pst.psd_proc_cnt;
 #endif
 
 	return ret;
diff --git a/src/common/tuklib_physmem.c b/src/common/tuklib_physmem.c
index 1536e6e5..623b6e70 100644
--- a/src/common/tuklib_physmem.c
+++ b/src/common/tuklib_physmem.c
@@ -33,6 +33,10 @@
 #	include <syidef.h>
 #	include <ssdef.h>
 
+// AIX
+#elif defined(TUKLIB_PHYSMEM_AIX)
+#	include <sys/systemcfg.h>
+
 #elif defined(TUKLIB_PHYSMEM_SYSCONF)
 #	include <unistd.h>
 
@@ -42,6 +46,16 @@
 #	endif
 #	include <sys/sysctl.h>
 
+// Tru64
+#elif defined(TUKLIB_PHYSMEM_GETSYSINFO)
+#	include <sys/sysinfo.h>
+#	include <machine/hal_sysinfo.h>
+
+// HP-UX
+#elif defined(TUKLIB_PHYSMEM_PSTAT_GETSTATIC)
+#	include <sys/param.h>
+#	include <sys/pstat.h>
+
 // IRIX
 #elif defined(TUKLIB_PHYSMEM_GETINVENT_R)
 #	include <invent.h>
@@ -105,10 +119,13 @@ tuklib_physmem(void)
 	if (LIB$GETSYI(&val, &vms_mem, 0, 0, 0, 0) == SS$_NORMAL)
 		ret = (uint64_t)vms_mem * 8192;
 
+#elif defined(TUKLIB_PHYSMEM_AIX)
+	ret = _system_configuration.physmem;
+
 #elif defined(TUKLIB_PHYSMEM_SYSCONF)
 	const long pagesize = sysconf(_SC_PAGESIZE);
 	const long pages = sysconf(_SC_PHYS_PAGES);
-	if (pagesize != -1 || pages != -1)
+	if (pagesize != -1 && pages != -1)
 		// According to docs, pagesize * pages can overflow.
 		// Simple case is 32-bit box with 4 GiB or more RAM,
 		// which may report exactly 4 GiB of RAM, and "long"
@@ -140,6 +157,20 @@ tuklib_physmem(void)
 			ret = mem.u32;
 	}
 
+#elif defined(TUKLIB_PHYSMEM_GETSYSINFO)
+	// Docs are unclear if "start" is needed, but it doesn't hurt
+	// much to have it.
+	int memkb;
+	int start = 0;
+	if (getsysinfo(GSI_PHYSMEM, (caddr_t)&memkb, sizeof(memkb), &start)
+			!= -1)
+		ret = (uint64_t)memkb * 1024;
+
+#elif defined(TUKLIB_PHYSMEM_PSTAT_GETSTATIC)
+	struct pst_static pst;
+	if (pstat_getstatic(&pst, sizeof(pst), 1, 0) != -1)
+		ret = (uint64_t)pst.physical_memory * (uint64_t)pst.page_size;
+
 #elif defined(TUKLIB_PHYSMEM_GETINVENT_R)
 	inv_state_t *st = NULL;
 	if (setinvent_r(&st) != -1) {