allwpilib/upstream_utils/libuv_patches/0002-Fix-warnings.patch

From f7b4492d37b35a64a3a6c5bbbdb375494095b6ff Mon Sep 17 00:00:00 2001
From: PJ Reiniger <pj.reiniger@gmail.com>
Date: Tue, 26 Apr 2022 15:09:43 -0400
Subject: [PATCH 2/9] Fix warnings

---
 include/uv/win.h    |   5 +++
 src/idna.c          |   2 +-
 src/inet.c          |   4 ++
 src/threadpool.c    |   4 ++
 src/unix/core.c     |  12 ++++-
 src/unix/darwin.c   | 106 +++++++++++++++++++++++---------------------
 src/unix/internal.h |   4 +-
 src/unix/thread.c   |   6 ---
 src/uv-common.c     |   8 ++++
 src/win/fs-event.c  |   2 +
 src/win/fs.c        |   2 +
 src/win/pipe.c      |   2 +
 src/win/process.c   |   2 +
 src/win/tty.c       |   2 +
 14 files changed, 99 insertions(+), 62 deletions(-)

diff --git a/include/uv/win.h b/include/uv/win.h
index 56a4cf11..10d5e8f1 100644
--- a/include/uv/win.h
+++ b/include/uv/win.h
@@ -201,11 +201,16 @@ typedef int (WSAAPI* LPFN_WSARECVFROM)
              LPWSAOVERLAPPED overlapped,
              LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine);
 
+#pragma warning(push)
+#pragma warning(disable : 28251)
+
 #ifndef _NTDEF_
   typedef LONG NTSTATUS;
   typedef NTSTATUS *PNTSTATUS;
 #endif
 
+#pragma warning(pop)
+
 #ifndef RTL_CONDITION_VARIABLE_INIT
   typedef PVOID CONDITION_VARIABLE, *PCONDITION_VARIABLE;
 #endif
diff --git a/src/idna.c b/src/idna.c
index 93d982ca..36a39a08 100644
--- a/src/idna.c
+++ b/src/idna.c
@@ -106,7 +106,7 @@ static int uv__idna_toascii_label(const char* s, const char* se,
                                   char** d, char* de) {
   static const char alphabet[] = "abcdefghijklmnopqrstuvwxyz0123456789";
   const char* ss;
-  unsigned c;
+  unsigned c = 0;
   unsigned h;
   unsigned k;
   unsigned n;
diff --git a/src/inet.c b/src/inet.c
index ca8b6ac8..1b190255 100644
--- a/src/inet.c
+++ b/src/inet.c
@@ -27,6 +27,10 @@
 #include "uv.h"
 #include "uv-common.h"
 
+#ifdef _WIN32
+#pragma warning(disable : 6001)
+#endif
+
 #define UV__INET_ADDRSTRLEN         16
 #define UV__INET6_ADDRSTRLEN        46
 
diff --git a/src/threadpool.c b/src/threadpool.c
index 1241ace1..718972c3 100644
--- a/src/threadpool.c
+++ b/src/threadpool.c
@@ -27,6 +27,10 @@
 
 #include <stdlib.h>
 
+#ifdef _WIN32
+#pragma warning(disable: 6001 6011)
+#endif
+
 #define MAX_THREADPOOL_SIZE 1024
 
 static uv_once_t once = UV_ONCE_INIT;
diff --git a/src/unix/core.c b/src/unix/core.c
index 6353b0e3..223c5513 100644
--- a/src/unix/core.c
+++ b/src/unix/core.c
@@ -544,6 +544,16 @@ int uv__accept(int sockfd) {
   return peerfd;
 }
 
+#if defined(__APPLE__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdollar-in-identifier-extension"
+#if defined(__LP64__)
+  extern "C" int close$NOCANCEL(int);
+#else
+  extern "C" int close$NOCANCEL$UNIX2003(int);
+#endif
+#pragma GCC diagnostic pop
+#endif
 
 /* close() on macos has the "interesting" quirk that it fails with EINTR
  * without closing the file descriptor when a thread is in the cancel state.
@@ -558,10 +568,8 @@ int uv__close_nocancel(int fd) {
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdollar-in-identifier-extension"
 #if defined(__LP64__) || TARGET_OS_IPHONE
-  extern int close$NOCANCEL(int);
   return close$NOCANCEL(fd);
 #else
-  extern int close$NOCANCEL$UNIX2003(int);
   return close$NOCANCEL$UNIX2003(fd);
 #endif
 #pragma GCC diagnostic pop
diff --git a/src/unix/darwin.c b/src/unix/darwin.c
index 5fbf7342..eeb35720 100644
--- a/src/unix/darwin.c
+++ b/src/unix/darwin.c
@@ -253,64 +253,68 @@ static int uv__get_cpu_speed(uint64_t* speed) {
 
 #define S(s) pCFStringCreateWithCString(NULL, (s), kCFStringEncodingUTF8)
 
-  kr = pIOMasterPort(MACH_PORT_NULL, &mach_port);
-  assert(kr == KERN_SUCCESS);
-  CFMutableDictionaryRef classes_to_match
-      = pIOServiceMatching("IOPlatformDevice");
-  kr = pIOServiceGetMatchingServices(mach_port, classes_to_match, &it);
-  assert(kr == KERN_SUCCESS);
-  service = pIOIteratorNext(it);
-
-  CFStringRef device_type_str = S("device_type");
-  CFStringRef clock_frequency_str = S("clock-frequency");
-
-  while (service != 0) {
-    CFDataRef data;
-    data = pIORegistryEntryCreateCFProperty(service,
-                                            device_type_str,
-                                            NULL,
-                                            0);
-    if (data) {
-      const UInt8* raw = pCFDataGetBytePtr(data);
-      if (strncmp((char*)raw, "cpu", 3) == 0 ||
-          strncmp((char*)raw, "processor", 9) == 0) {
-        CFDataRef freq_ref;
-        freq_ref = pIORegistryEntryCreateCFProperty(service,
-                                                    clock_frequency_str,
-                                                    NULL,
-                                                    0);
-        if (freq_ref) {
-          const UInt8* freq_ref_ptr = pCFDataGetBytePtr(freq_ref);
-          CFIndex len = pCFDataGetLength(freq_ref);
-          if (len == 8)
-            memcpy(speed, freq_ref_ptr, 8);
-          else if (len == 4) {
-            uint32_t v;
-            memcpy(&v, freq_ref_ptr, 4);
-            *speed = v;
-          } else {
-            *speed = 0;
-          }
+  // Braces ensure goto doesn't jump into device_type_str's and
+  // clock_frequency_str's lifetimes after their initialization
+  {
+    kr = pIOMasterPort(MACH_PORT_NULL, &mach_port);
+    assert(kr == KERN_SUCCESS);
+    CFMutableDictionaryRef classes_to_match
+        = pIOServiceMatching("IOPlatformDevice");
+    kr = pIOServiceGetMatchingServices(mach_port, classes_to_match, &it);
+    assert(kr == KERN_SUCCESS);
+    service = pIOIteratorNext(it);
 
-          pCFRelease(freq_ref);
-          pCFRelease(data);
-          break;
+    CFStringRef device_type_str = S("device_type");
+    CFStringRef clock_frequency_str = S("clock-frequency");
+
+    while (service != 0) {
+      CFDataRef data;
+      data = pIORegistryEntryCreateCFProperty(service,
+                                              device_type_str,
+                                              NULL,
+                                              0);
+      if (data) {
+        const UInt8* raw = pCFDataGetBytePtr(data);
+        if (strncmp((char*)raw, "cpu", 3) == 0 ||
+            strncmp((char*)raw, "processor", 9) == 0) {
+          CFDataRef freq_ref;
+          freq_ref = pIORegistryEntryCreateCFProperty(service,
+                                                      clock_frequency_str,
+                                                      NULL,
+                                                      0);
+          if (freq_ref) {
+            const UInt8* freq_ref_ptr = pCFDataGetBytePtr(freq_ref);
+            CFIndex len = pCFDataGetLength(freq_ref);
+            if (len == 8)
+              memcpy(speed, freq_ref_ptr, 8);
+            else if (len == 4) {
+              uint32_t v;
+              memcpy(&v, freq_ref_ptr, 4);
+              *speed = v;
+            } else {
+              *speed = 0;
+            }
+
+            pCFRelease(freq_ref);
+            pCFRelease(data);
+            break;
+          }
         }
+        pCFRelease(data);
       }
-      pCFRelease(data);
-    }
 
-    service = pIOIteratorNext(it);
-  }
+      service = pIOIteratorNext(it);
+    }
 
-  pIOObjectRelease(it);
+    pIOObjectRelease(it);
 
-  err = 0;
+    err = 0;
 
-  if (device_type_str != NULL)
-    pCFRelease(device_type_str);
-  if (clock_frequency_str != NULL)
-    pCFRelease(clock_frequency_str);
+    if (device_type_str != NULL)
+      pCFRelease(device_type_str);
+    if (clock_frequency_str != NULL)
+      pCFRelease(clock_frequency_str);
+  }
 
 out:
   if (core_foundation_handle != NULL)
diff --git a/src/unix/internal.h b/src/unix/internal.h
index cee35c21..f9d1666d 100644
--- a/src/unix/internal.h
+++ b/src/unix/internal.h
@@ -312,8 +312,8 @@ UV_UNUSED(static void uv__update_time(uv_loop_t* loop)) {
   loop->time = uv__hrtime(UV_CLOCK_FAST) / 1000000;
 }
 
-UV_UNUSED(static char* uv__basename_r(const char* path)) {
-  char* s;
+UV_UNUSED(static const char* uv__basename_r(const char* path)) {
+  const char* s;
 
   s = strrchr(path, '/');
   if (s == NULL)
diff --git a/src/unix/thread.c b/src/unix/thread.c
index 759cd0c2..64726bd6 100644
--- a/src/unix/thread.c
+++ b/src/unix/thread.c
@@ -244,12 +244,6 @@ int uv_thread_create_ex(uv_thread_t* tid,
   size_t stack_size;
   size_t min_stack_size;
 
-  /* Used to squelch a -Wcast-function-type warning. */
-  union {
-    void (*in)(void*);
-    void* (*out)(void*);
-  } f;
-
   stack_size =
       params->flags & UV_THREAD_HAS_STACK_SIZE ? params->stack_size : 0;
 
diff --git a/src/uv-common.c b/src/uv-common.c
index dfb606e3..49026c03 100644
--- a/src/uv-common.c
+++ b/src/uv-common.c
@@ -758,6 +758,10 @@ void uv__fs_readdir_cleanup(uv_fs_t* req) {
   }
 }
 
+#ifdef __clang__
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wvarargs"
+#endif
 
 int uv_loop_configure(uv_loop_t* loop, uv_loop_option option, ...) {
   va_list ap;
@@ -771,6 +775,10 @@ int uv_loop_configure(uv_loop_t* loop, uv_loop_option option, ...) {
   return err;
 }
 
+#ifdef __clang__
+# pragma clang diagnostic pop
+#endif
+
 
 static uv_loop_t default_loop_struct;
 static uv_loop_t* default_loop_ptr;
diff --git a/src/win/fs-event.c b/src/win/fs-event.c
index 15046731..3244a4e4 100644
--- a/src/win/fs-event.c
+++ b/src/win/fs-event.c
@@ -19,6 +19,8 @@
  * IN THE SOFTWARE.
  */
 
+#define _CRT_NONSTDC_NO_WARNINGS
+
 #include <assert.h>
 #include <errno.h>
 #include <stdio.h>
diff --git a/src/win/fs.c b/src/win/fs.c
index 8374012f..f71b3c04 100644
--- a/src/win/fs.c
+++ b/src/win/fs.c
@@ -19,6 +19,8 @@
  * IN THE SOFTWARE.
  */
 
+#define _CRT_NONSTDC_NO_WARNINGS
+
 #include <assert.h>
 #include <stdlib.h>
 #include <direct.h>
diff --git a/src/win/pipe.c b/src/win/pipe.c
index cd77061a..f413a72d 100644
--- a/src/win/pipe.c
+++ b/src/win/pipe.c
@@ -19,6 +19,8 @@
  * IN THE SOFTWARE.
  */
 
+#define _CRT_NONSTDC_NO_WARNINGS
+
 #include <assert.h>
 #include <io.h>
 #include <stdio.h>
diff --git a/src/win/process.c b/src/win/process.c
index e857db3e..a49016f6 100644
--- a/src/win/process.c
+++ b/src/win/process.c
@@ -19,6 +19,8 @@
  * IN THE SOFTWARE.
  */
 
+#define _CRT_NONSTDC_NO_WARNINGS
+
 #include <assert.h>
 #include <io.h>
 #include <stdio.h>
diff --git a/src/win/tty.c b/src/win/tty.c
index 267ca645..d7522668 100644
--- a/src/win/tty.c
+++ b/src/win/tty.c
@@ -19,6 +19,8 @@
  * IN THE SOFTWARE.
  */
 
+#define _CRT_NONSTDC_NO_WARNINGS
+
 #include <assert.h>
 #include <io.h>
 #include <string.h>