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Our close-on-exec flag handling was broken: it's supposed to be specified per slot, not

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per file descriptor (a descriptor can be shared among several slots). There is now a
second table in the io_context structure that contains that information in a bitmap.
There are now two new (private) functions to control the close-on-exec flag, fd_close_on_exec(),
and fd_set_close_on_exec().
F_DUPFD, dup(), and dup2() are supposed to clear the close-on-exec flag on the duplicated
slot - this fixes bug #57 (no output after a redirect of a shell builtin).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14313 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-10-06 09:02:59 +00:00
parent e90c3fec10
commit 681779f1c8
4 changed files with 62 additions and 13 deletions
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headers/private/kernel/vfs.h
+1
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@@ -37,6 +37,7 @@ typedef struct io_context {
uint32 table_size;
uint32 num_used_fds;
struct file_descriptor **fds;
uint8 *fds_close_on_exec;
struct list node_monitors;
uint32 num_monitors;
uint32 max_monitors;