From e3d52a3812e660608118c2d58236dd8164fc9a6b Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Mon, 22 Sep 2025 14:47:49 +0200
Subject: [PATCH 19/23] C11 anonymous unions [fd]

---
 src/backend/storage/file/fd.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c
index a4ec7959f31..c222a442a8d 100644
--- a/src/backend/storage/file/fd.c
+++ b/src/backend/storage/file/fd.c
@@ -261,7 +261,7 @@ typedef struct
 		FILE	   *file;
 		DIR		   *dir;
 		int			fd;
-	}			desc;
+	};
 } AllocateDesc;
 
 static int	numAllocatedDescs = 0;
@@ -2661,10 +2661,10 @@ AllocateFile(const char *name, const char *mode)
 		AllocateDesc *desc = &allocatedDescs[numAllocatedDescs];
 
 		desc->kind = AllocateDescFile;
-		desc->desc.file = file;
+		desc->file = file;
 		desc->create_subid = GetCurrentSubTransactionId();
 		numAllocatedDescs++;
-		return desc->desc.file;
+		return desc->file;
 	}
 
 	if (errno == EMFILE || errno == ENFILE)
@@ -2721,7 +2721,7 @@ OpenTransientFilePerm(const char *fileName, int fileFlags, mode_t fileMode)
 		AllocateDesc *desc = &allocatedDescs[numAllocatedDescs];
 
 		desc->kind = AllocateDescRawFD;
-		desc->desc.fd = fd;
+		desc->fd = fd;
 		desc->create_subid = GetCurrentSubTransactionId();
 		numAllocatedDescs++;
 
@@ -2772,10 +2772,10 @@ OpenPipeStream(const char *command, const char *mode)
 		AllocateDesc *desc = &allocatedDescs[numAllocatedDescs];
 
 		desc->kind = AllocateDescPipe;
-		desc->desc.file = file;
+		desc->file = file;
 		desc->create_subid = GetCurrentSubTransactionId();
 		numAllocatedDescs++;
-		return desc->desc.file;
+		return desc->file;
 	}
 
 	if (errno == EMFILE || errno == ENFILE)
@@ -2805,17 +2805,17 @@ FreeDesc(AllocateDesc *desc)
 	switch (desc->kind)
 	{
 		case AllocateDescFile:
-			result = fclose(desc->desc.file);
+			result = fclose(desc->file);
 			break;
 		case AllocateDescPipe:
-			result = pclose(desc->desc.file);
+			result = pclose(desc->file);
 			break;
 		case AllocateDescDir:
-			result = closedir(desc->desc.dir);
+			result = closedir(desc->dir);
 			break;
 		case AllocateDescRawFD:
-			pgaio_closing_fd(desc->desc.fd);
-			result = close(desc->desc.fd);
+			pgaio_closing_fd(desc->fd);
+			result = close(desc->fd);
 			break;
 		default:
 			elog(ERROR, "AllocateDesc kind not recognized");
@@ -2848,7 +2848,7 @@ FreeFile(FILE *file)
 	{
 		AllocateDesc *desc = &allocatedDescs[i];
 
-		if (desc->kind == AllocateDescFile && desc->desc.file == file)
+		if (desc->kind == AllocateDescFile && desc->file == file)
 			return FreeDesc(desc);
 	}
 
@@ -2876,7 +2876,7 @@ CloseTransientFile(int fd)
 	{
 		AllocateDesc *desc = &allocatedDescs[i];
 
-		if (desc->kind == AllocateDescRawFD && desc->desc.fd == fd)
+		if (desc->kind == AllocateDescRawFD && desc->fd == fd)
 			return FreeDesc(desc);
 	}
 
@@ -2924,10 +2924,10 @@ AllocateDir(const char *dirname)
 		AllocateDesc *desc = &allocatedDescs[numAllocatedDescs];
 
 		desc->kind = AllocateDescDir;
-		desc->desc.dir = dir;
+		desc->dir = dir;
 		desc->create_subid = GetCurrentSubTransactionId();
 		numAllocatedDescs++;
-		return desc->desc.dir;
+		return desc->dir;
 	}
 
 	if (errno == EMFILE || errno == ENFILE)
@@ -3034,7 +3034,7 @@ FreeDir(DIR *dir)
 	{
 		AllocateDesc *desc = &allocatedDescs[i];
 
-		if (desc->kind == AllocateDescDir && desc->desc.dir == dir)
+		if (desc->kind == AllocateDescDir && desc->dir == dir)
 			return FreeDesc(desc);
 	}
 
@@ -3060,7 +3060,7 @@ ClosePipeStream(FILE *file)
 	{
 		AllocateDesc *desc = &allocatedDescs[i];
 
-		if (desc->kind == AllocateDescPipe && desc->desc.file == file)
+		if (desc->kind == AllocateDescPipe && desc->file == file)
 			return FreeDesc(desc);
 	}
 
-- 
2.51.0