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authorLukas Larsson <[email protected]>2014-02-23 17:00:41 +0100
committerLukas Larsson <[email protected]>2014-02-24 15:15:56 +0100
commitc743ed359f16f791dd15b58b86af7f77db4799aa (patch)
treecf5bc15589f8f154fb2439af0506e9614befa6aa /erts
parent48201abc7961b44be9e5cf0feb74d18a399d6099 (diff)
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ose: Force atleast one async thread for ose
This is needed because a file has to be opened and operated on in the same process at all times. Using async threads guarantee this.
Diffstat (limited to 'erts')
-rw-r--r--erts/emulator/beam/erl_init.c2
-rw-r--r--erts/emulator/sys/ose/erl_ose_sys.h5
-rw-r--r--erts/emulator/sys/unix/erl_unix_sys.h5
-rw-r--r--erts/emulator/sys/win32/erl_win_sys.h4
4 files changed, 15 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index c17256f466..e2227e8de4 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -780,7 +780,7 @@ early_init(int *argc, char **argv) /*
case 'A': {
/* set number of threads in thread pool */
char *arg = get_arg(argv[i]+2, argv[i+1], &i);
- if (((erts_async_max_threads = atoi(arg)) < 0) ||
+ if (((erts_async_max_threads = atoi(arg)) < ERTS_MIN_NO_OF_ASYNC_THREADS) ||
(erts_async_max_threads > ERTS_MAX_NO_OF_ASYNC_THREADS)) {
erts_fprintf(stderr,
"bad number of async threads %s\n",
diff --git a/erts/emulator/sys/ose/erl_ose_sys.h b/erts/emulator/sys/ose/erl_ose_sys.h
index 94f1e58883..5243886bac 100644
--- a/erts/emulator/sys/ose/erl_ose_sys.h
+++ b/erts/emulator/sys/ose/erl_ose_sys.h
@@ -70,6 +70,11 @@ struct erts_sys_fd_type {
/*
+ * Min number of async threads
+ */
+#define ERTS_MIN_NO_OF_ASYNC_THREADS 1
+
+/*
* Our own type of "FD's"
*/
#define ERTS_SYS_FD_TYPE struct erts_sys_fd_type*
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index 2c47aa06c2..176fc049a7 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -127,6 +127,11 @@
# endif
#endif
+/*
+ * Min number of async threads
+ */
+#define ERTS_MIN_NO_OF_ASYNC_THREADS 0
+
/* File descriptors are numbers anc consecutively allocated on Unix */
#define ERTS_SYS_CONTINOUS_FD_NUMBERS
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 0deb097b1a..8015e8f378 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -103,6 +103,10 @@
#define CreateAutoEvent(state) CreateEvent(NULL, FALSE, state, NULL)
#define CreateManualEvent(state) CreateEvent(NULL, TRUE, state, NULL)
+/*
+ * Min number of async threads
+ */
+#define ERTS_MIN_NO_OF_ASYNC_THREADS 0
/*
* Our own type of "FD's"