aboutsummaryrefslogtreecommitdiffstats
path: root/erts
diff options
context:
space:
mode:
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
parent4c3141e8765bcaaaf998dd84b4f53059c3fe066f (diff)
downloadotp-4d7f8c2ab1a7b8c204d932166837b58d08de6506.tar.gz
otp-4d7f8c2ab1a7b8c204d932166837b58d08de6506.tar.bz2
otp-4d7f8c2ab1a7b8c204d932166837b58d08de6506.zip
erts: Add cbprintf for Callback Printing
Diffstat (limited to 'erts')
-rw-r--r--erts/include/internal/erl_printf.h7
-rw-r--r--erts/include/internal/erl_printf_format.h3
-rw-r--r--erts/lib_src/common/erl_printf.c37
3 files changed, 37 insertions, 10 deletions
diff --git a/erts/include/internal/erl_printf.h b/erts/include/internal/erl_printf.h
index c4565dfafc..f180a53f18 100644
--- a/erts/include/internal/erl_printf.h
+++ b/erts/include/internal/erl_printf.h
@@ -41,12 +41,18 @@ struct erts_dsprintf_buf_t_ {
#define ERTS_DSPRINTF_BUF_INITER(GFUNC) {NULL, 0, 0, (GFUNC)}
+typedef int (*fmtfn_t)(void*, char*, size_t);
+
+int erts_write_fd(void *vfdp, char* buf, size_t len);
+int erts_write_ds(void *vdsbufp, char* buf, size_t len);
+
int erts_printf(const char *, ...);
int erts_fprintf(FILE *, const char *, ...);
int erts_fdprintf(int, const char *, ...);
int erts_sprintf(char *, const char *, ...);
int erts_snprintf(char *, size_t, const char *, ...);
int erts_dsprintf(erts_dsprintf_buf_t *, const char *, ...);
+int erts_cbprintf(fmtfn_t, void*, const char*, ...);
int erts_vprintf(const char *, va_list);
int erts_vfprintf(FILE *, const char *, va_list);
@@ -54,5 +60,6 @@ int erts_vfdprintf(int, const char *, va_list);
int erts_vsprintf(char *, const char *, va_list);
int erts_vsnprintf(char *, size_t, const char *, va_list);
int erts_vdsprintf(erts_dsprintf_buf_t *, const char *, va_list);
+int erts_vcbprintf(fmtfn_t, void*, const char*, va_list);
#endif /* #ifndef ERL_PRINTF_H_ */
diff --git a/erts/include/internal/erl_printf_format.h b/erts/include/internal/erl_printf_format.h
index 4f969bdbcb..56ec032bd1 100644
--- a/erts/include/internal/erl_printf_format.h
+++ b/erts/include/internal/erl_printf_format.h
@@ -30,6 +30,7 @@
#include <stdlib.h>
#include "erl_int_sizes_config.h"
+#include "erl_printf.h"
#if SIZEOF_VOID_P == SIZEOF_LONG
typedef unsigned long ErlPfUWord;
@@ -44,8 +45,6 @@ typedef long long ErlPfSWord;
#error Found no appropriate type to use for 'Eterm', 'Uint' and 'Sint'
#endif
-typedef int (*fmtfn_t)(void*, char*, size_t);
-
extern int erts_printf_format(fmtfn_t, void*, char*, va_list);
extern int erts_printf_char(fmtfn_t, void*, char);
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);
+}