nostrdb

commit d5242aad49c093bcb44eb9be304e355a4f5796bd
parent 9f2ee7898e20a0182b2cd6bd6e4c3d1ac3aabcb4
Author: William Casarin <jb55@jb55.com>
Date:   Fri,  1 Dec 2023 13:20:05 -0800

add missing cpu.h

oops

Diffstat:
M
Makefile
 | 
2
+-
A
cpu.h
 | 
34
++++++++++++++++++++++++++++++++++

2 files changed, 35 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
@@ -1,5 +1,5 @@
 CFLAGS = -Wall -Wno-misleading-indentation -Wno-unused-function -Werror -O2 -g -Ideps/secp256k1/include -Ideps/lmdb -Ideps/flatcc/include
-HEADERS = sha256.h nostrdb.h cursor.h hex.h jsmn.h config.h sha256.h random.h memchr.h $(C_BINDINGS)
+HEADERS = sha256.h nostrdb.h cursor.h hex.h jsmn.h config.h sha256.h random.h memchr.h cpu.h $(C_BINDINGS)
 FLATCC_SRCS=deps/flatcc/src/runtime/json_parser.c deps/flatcc/src/runtime/verifier.c deps/flatcc/src/runtime/builder.c deps/flatcc/src/runtime/emitter.c deps/flatcc/src/runtime/refmap.c
 SRCS = nostrdb.c sha256.c bech32.c $(FLATCC_SRCS)
 LDS = $(SRCS) $(ARS) 
diff --git a/cpu.h b/cpu.h
@@ -0,0 +1,34 @@
+
+#if defined(_WIN32) || defined(_WIN64)
+	#include <windows.h>
+#elif defined(__linux__)
+	#include <unistd.h>
+#elif defined(__APPLE__)
+	#include <sys/types.h>
+	#include <sys/sysctl.h>
+#else
+	#error "Unsupported platform"
+#endif
+
+static inline int get_physical_cores() {
+	int num_cores = 0;
+
+	// Windows
+	#if defined(_WIN32) || defined(_WIN64)
+		SYSTEM_INFO sysinfo;
+		GetSystemInfo(&sysinfo);
+		num_cores = sysinfo.dwNumberOfProcessors; // This returns logical processors
+		// Further use GetLogicalProcessorInformation for physical cores...
+	// Linux
+	#elif defined(__linux__)
+		num_cores = sysconf(_SC_NPROCESSORS_ONLN); // This returns logical processors
+	// macOS
+	#elif defined(__APPLE__)
+		size_t size = sizeof(num_cores);
+		sysctlbyname("hw.physicalcpu", &num_cores, &size, NULL, 0);
+	#else
+		num_cores = -1; // Unsupported platform
+	#endif
+
+	return num_cores;
+}