From a78706889adb87918a915b628f11e50df9bc0112 Mon Sep 17 00:00:00 2001
From: wessels <>
Date: Wed, 30 Apr 1997 09:13:28 +0000
Subject: [PATCH] adding

---
 src/fd.cc | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/fd.cc

diff --git a/src/fd.cc b/src/fd.cc
new file mode 100644
index 0000000000..cad4deebfc
--- /dev/null
+++ b/src/fd.cc
@@ -0,0 +1,54 @@
+#include "squid.h"
+
+static void fdUpdateBiggest _PARAMS((int fd, unsigned int status));
+
+static void
+fdUpdateBiggest(int fd, unsigned int status)
+{
+    if (fd < Biggest_FD)
+	return;
+    if (fd >= Squid_MaxFD) {
+	debug_trap("Running out of file descriptors.\n");
+	return;
+    }
+    if (fd > Biggest_FD) {
+	if (status == FD_OPEN)
+	    Biggest_FD = fd;
+	else
+	    debug_trap("Biggest_FD inconsistency");
+	return;
+    }
+    /* if we are here, then fd == Biggest_FD */
+    if (status != FD_CLOSE) {
+	debug_trap("re-opening Biggest_FD?");
+	return;
+    }
+    while (fd_table[Biggest_FD].open != FD_OPEN)
+	Biggest_FD--;
+}
+
+void
+fd_close (int fd)
+{
+    FD_ENTRY *fde = &fd_table[fd];
+    fdUpdateBiggest(fd, FD_CLOSE);
+    memset(fde, '\0', sizeof(FD_ENTRY));
+    fde->timeout = 0;
+}
+
+void
+fd_open(int fd, unsigned int type, const char *desc)
+{
+    FD_ENTRY *fde = &fd_table[fd];
+    fde->type = type;
+    fdUpdateBiggest(fd, fde->open = FD_OPEN);
+    if (desc)
+        xstrncpy(fde->desc, desc, FD_DESC_SZ);
+}
+
+void
+fd_note(int fd, const char *s)
+{
+    FD_ENTRY *fde = &fd_table[fd];
+    xstrncpy(fde->desc, s, FD_DESC_SZ);
+}
-- 
2.47.2