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authorScott Lystig Fritchie <[email protected]>2011-11-17 00:45:50 -0600
committerPatrik Nyblom <[email protected]>2012-03-22 18:16:13 +0100
commit2f532f889a6bd31f74122bd223277d7c609f7bdc (patch)
tree8c0463bf781059147caeb31c2594ed211d4854e6 /erts/lib_src/common
parent0331c29e0e494d4c1e4fdd05e48a3f88a8caea0b (diff)
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Add DTrace support for OS X, Solaris, and Linux (via SystemTap), 3/4
Add probes to the virtual machine, except (mostly) the efile_drv.c driver and other file I/O-related source files.
Diffstat (limited to 'erts/lib_src/common')
-rw-r--r--erts/lib_src/common/erl_printf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/lib_src/common/erl_printf.c b/erts/lib_src/common/erl_printf.c
index 108a8bb531..afb9c0abb7 100644
--- a/erts/lib_src/common/erl_printf.c
+++ b/erts/lib_src/common/erl_printf.c
@@ -176,16 +176,18 @@ write_sn(void *vwsnap, char* buf, size_t len)
write_sn_arg_t *wsnap = (write_sn_arg_t *) vwsnap;
ASSERT(wsnap);
ASSERT(len > 0);
+ int rv = 0;
if (wsnap->len > 0) {
size_t sz = len;
if (sz >= wsnap->len)
sz = wsnap->len;
+ rv = (int)sz;
memcpy((void *) wsnap->buf, (void *) buf, sz);
wsnap->buf += sz;
wsnap->len -= sz;
return sz;
}
- return 0;
+ return rv;
}
static int