From 7e877be8fb34ab99421a2eaf3d8fb1b96ed95206 Mon Sep 17 00:00:00 2001
From: cheliequan <liequanche@126.com>
Date: 星期四, 08 十二月 2022 21:06:52 +0800
Subject: [PATCH] 增加共享内存hash链表操作
---
src/memfd.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/src/memfd.c b/src/memfd.c
index 04ced4d..2509685 100644
--- a/src/memfd.c
+++ b/src/memfd.c
@@ -70,12 +70,16 @@
struct stat st;
/* Create an anonymous file in tmpfs; */
+ if(0 >= len)
+ {
+ return -1;
+ }
fd = sys_memfd_create(name, MFD_CLOEXEC);
if (fd == -1)
{
- errExit("memfd_create");
+ errExit("memfd_create");
}
/* Size the file as specified on the command line */
@@ -83,7 +87,7 @@
mydebug("length: %zu\n", len);
if (ftruncate(fd, len) == -1)
{
- errExit("truncate");
+ errExit("ftruncate");
}
if (fstat (fd, &st))
@@ -174,12 +178,12 @@
}
len = st.st_size;
- ret = munmap(*ppaddr, len);
+ ret = munmap((void *)*ppaddr, len);
if (ret == -1)
{
errExit("munmap()");
}
-
+ *ppaddr = NULL;
mydebug("length: %zu, atime: %lu.%lu\n", len, st.st_atim.tv_sec, st.st_atim.tv_nsec);
return len;
}
--
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