MINOR: global: keep a copy of the initial rlim_fd_cur and rlim_fd_max values
Let's keep a copy of these initial values. They will be useful to
compute automatic maxconn, as well as to restore proper limits when
doing an execve() on external checks.
diff --git a/include/types/global.h b/include/types/global.h
index 503d8f9..009814b 100644
--- a/include/types/global.h
+++ b/include/types/global.h
@@ -222,6 +222,8 @@
extern struct list proc_list; /* list of process in mworker mode */
extern struct mworker_proc *proc_self; /* process structure of current process */
extern int master; /* 1 if in master, 0 otherwise */
+extern unsigned int rlim_fd_cur_at_boot;
+extern unsigned int rlim_fd_max_at_boot;
/* bit values to go with "warned" above */
#define WARN_BLOCK_DEPRECATED 0x00000001
diff --git a/src/haproxy.c b/src/haproxy.c
index 59da1fd..62263e4 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -220,6 +220,8 @@
struct list proc_list = LIST_HEAD_INIT(proc_list);
int master = 0; /* 1 if in master, 0 if in child */
+unsigned int rlim_fd_cur_at_boot = 0;
+unsigned int rlim_fd_max_at_boot = 0;
struct mworker_proc *proc_self = NULL;
@@ -2748,6 +2750,11 @@
exit(1);
}
+ /* take a copy of initial limits before we possibly change them */
+ getrlimit(RLIMIT_NOFILE, &limit);
+ rlim_fd_cur_at_boot = limit.rlim_cur;
+ rlim_fd_max_at_boot = limit.rlim_max;
+
/* process all initcalls in order of potential dependency */
RUN_INITCALLS(STG_PREPARE);
RUN_INITCALLS(STG_LOCK);