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authorSverker Eriksson <[email protected]>2016-11-17 16:49:30 +0100
committerSverker Eriksson <[email protected]>2016-11-17 16:49:30 +0100
commit4d7f8c2ab1a7b8c204d932166837b58d08de6506 (patch)
tree342de93328fc3fb7fd4f071eef90c447f93f014e /erts/lib_src/common
parent4c3141e8765bcaaaf998dd84b4f53059c3fe066f (diff)
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erts: Add cbprintf for Callback Printing
Diffstat (limited to 'erts/lib_src/common')
-rw-r--r--erts/lib_src/common/erl_printf.c37
1 files changed, 29 insertions, 8 deletions
diff --git a/erts/lib_src/common/erl_printf.c b/erts/lib_src/common/erl_printf.c
index b5e90dfeef..7781fc2196 100644
--- a/erts/lib_src/common/erl_printf.c
+++ b/erts/lib_src/common/erl_printf.c
@@ -165,8 +165,8 @@ write_f(void *vfp, char* buf, size_t len)
return len;
}
-static int
-write_fd(void *vfdp, char* buf, size_t len)
+int
+erts_write_fd(void *vfdp, char* buf, size_t len)
{
ssize_t size;
size_t res = len;
@@ -226,8 +226,8 @@ write_sn(void *vwsnap, char* buf, size_t len)
return rv;
}
-static int
-write_ds(void *vdsbufp, char* buf, size_t len)
+int
+erts_write_ds(void *vdsbufp, char* buf, size_t len)
{
erts_dsprintf_buf_t *dsbufp = (erts_dsprintf_buf_t *) vdsbufp;
size_t need_len = len + 1; /* Also trailing '\0' */
@@ -301,7 +301,7 @@ erts_fdprintf(int fd, const char *format, ...)
va_list arglist;
va_start(arglist, format);
errno = 0;
- res = erts_printf_format(write_fd,(void *)&fd,(char *)format,arglist);
+ res = erts_printf_format(erts_write_fd,(void *)&fd,(char *)format,arglist);
va_end(arglist);
return res;
}
@@ -355,7 +355,7 @@ erts_dsprintf(erts_dsprintf_buf_t *dsbufp, const char *format, ...)
return -EINVAL;
va_start(arglist, format);
errno = 0;
- res = erts_printf_format(write_ds, (void *)dsbufp, (char *)format, arglist);
+ res = erts_printf_format(erts_write_ds, (void *)dsbufp, (char *)format, arglist);
if (dsbufp->str) {
if (res < 0)
dsbufp->str[0] = '\0';
@@ -366,6 +366,20 @@ erts_dsprintf(erts_dsprintf_buf_t *dsbufp, const char *format, ...)
return res;
}
+/*
+ * Callback printf
+ */
+int erts_cbprintf(fmtfn_t cb_fn, void* cb_arg, const char* format, ...)
+{
+ int res;
+ va_list arglist;
+ va_start(arglist, format);
+ errno = 0;
+ res = erts_printf_format(cb_fn, cb_arg, (char *)format, arglist);
+ va_end(arglist);
+ return res;
+}
+
int
erts_vprintf(const char *format, va_list arglist)
{
@@ -411,7 +425,7 @@ erts_vfdprintf(int fd, const char *format, va_list arglist)
{
int res;
errno = 0;
- res = erts_printf_format(write_fd,(void *)&fd,(char *)format,arglist);
+ res = erts_printf_format(erts_write_fd,(void *)&fd,(char *)format,arglist);
return res;
}
@@ -456,7 +470,7 @@ erts_vdsprintf(erts_dsprintf_buf_t *dsbufp, const char *format, va_list arglist)
if (!dsbufp)
return -EINVAL;
errno = 0;
- res = erts_printf_format(write_ds, (void *)dsbufp, (char *)format, arglist);
+ res = erts_printf_format(erts_write_ds, (void *)dsbufp, (char *)format, arglist);
if (dsbufp->str) {
if (res < 0)
dsbufp->str[0] = '\0';
@@ -465,3 +479,10 @@ erts_vdsprintf(erts_dsprintf_buf_t *dsbufp, const char *format, va_list arglist)
}
return res;
}
+
+int
+erts_vcbprintf(fmtfn_t cb_fn, void* cb_arg, const char *format, va_list arglist)
+{
+ errno = 0;
+ return erts_printf_format(cb_fn, cb_arg, (char *)format, arglist);
+}