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From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: dev@dpdk.org
Cc: Tyler Retzlaff <roretzla@microsoft.com>,
	Nick Connolly <nick.connolly@mayadata.io>,
	Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>,
	Jerin Jacob <jerinj@marvell.com>,
	Sunil Kumar Kori <skori@marvell.com>,
	Narcisa Ana Maria Vasile <navasile@linux.microsoft.com>,
	Dmitry Malloy <dmitrym@microsoft.com>,
	Pallavi Kadam <pallavi.kadam@intel.com>
Subject: [dpdk-dev] [PATCH v2 4/7] eal: add asprintf() internal wrapper
Date: Sun, 21 Feb 2021 04:28:28 +0300
Message-ID: <20210221012831.14643-5-dmitry.kozliuk@gmail.com> (raw)
In-Reply-To: <20210221012831.14643-1-dmitry.kozliuk@gmail.com>

POSIX asprintf() is unavailable on Windows.
Add eal_asprintf() wrapper for EAL internal use.
On Windows it's a function, on Unix it's a macro for asprintf().

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
---
 lib/librte_eal/common/eal_common_lcore.c      |  2 +-
 lib/librte_eal/common/eal_common_options.c    |  8 ++---
 lib/librte_eal/common/eal_common_trace.c      |  2 +-
 lib/librte_eal/common/eal_common_trace_ctf.c  |  2 +-
 .../common/eal_common_trace_utils.c           |  2 +-
 lib/librte_eal/common/eal_private.h           | 18 +++++++++++
 lib/librte_eal/windows/eal.c                  | 30 +++++++++++++++++++
 7 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_lcore.c b/lib/librte_eal/common/eal_common_lcore.c
index 66d6bad1a..db16a34cc 100644
--- a/lib/librte_eal/common/eal_common_lcore.c
+++ b/lib/librte_eal/common/eal_common_lcore.c
@@ -282,7 +282,7 @@ rte_lcore_callback_register(const char *name, rte_lcore_init_cb init,
 	callback = calloc(1, sizeof(*callback));
 	if (callback == NULL)
 		return NULL;
-	if (asprintf(&callback->name, "%s-%p", name, arg) == -1) {
+	if (eal_asprintf(&callback->name, "%s-%p", name, arg) == -1) {
 		free(callback);
 		return NULL;
 	}
diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index bad389903..275f879d7 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -1435,7 +1435,7 @@ available_cores(void)
 		return NULL;
 
 	/* first sequence */
-	if (asprintf(&str, "%d", idx) < 0)
+	if (eal_asprintf(&str, "%d", idx) < 0)
 		return NULL;
 	previous = idx;
 	sequence = 0;
@@ -1452,7 +1452,7 @@ available_cores(void)
 
 		/* finish current sequence */
 		if (sequence) {
-			if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
+			if (eal_asprintf(&tmp, "%s-%d", str, previous) < 0) {
 				free(str);
 				return NULL;
 			}
@@ -1461,7 +1461,7 @@ available_cores(void)
 		}
 
 		/* new sequence */
-		if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
+		if (eal_asprintf(&tmp, "%s,%d", str, idx) < 0) {
 			free(str);
 			return NULL;
 		}
@@ -1473,7 +1473,7 @@ available_cores(void)
 
 	/* finish last sequence */
 	if (sequence) {
-		if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
+		if (eal_asprintf(&tmp, "%s-%d", str, previous) < 0) {
 			free(str);
 			return NULL;
 		}
diff --git a/lib/librte_eal/common/eal_common_trace.c b/lib/librte_eal/common/eal_common_trace.c
index 24e27387b..d57bb8ecc 100644
--- a/lib/librte_eal/common/eal_common_trace.c
+++ b/lib/librte_eal/common/eal_common_trace.c
@@ -435,7 +435,7 @@ __rte_trace_point_emit_field(size_t sz, const char *in, const char *datatype)
 	fixup = trace_metadata_fixup_field(in);
 	if (fixup != NULL)
 		in = fixup;
-	rc = asprintf(&field, "%s        %s %s;\n",
+	rc = eal_asprintf(&field, "%s        %s %s;\n",
 		RTE_PER_LCORE(ctf_field) != NULL ?
 			RTE_PER_LCORE(ctf_field) : "",
 		datatype, in);
diff --git a/lib/librte_eal/common/eal_common_trace_ctf.c b/lib/librte_eal/common/eal_common_trace_ctf.c
index 4041d9af6..31df7262e 100644
--- a/lib/librte_eal/common/eal_common_trace_ctf.c
+++ b/lib/librte_eal/common/eal_common_trace_ctf.c
@@ -389,7 +389,7 @@ char *trace_metadata_fixup_field(const char *field)
 	for (i = 0; i < RTE_DIM(ctf_reserved_words); i++) {
 		if (strcmp(field, ctf_reserved_words[i]) != 0)
 			continue;
-		if (asprintf(&out, "_%s", ctf_reserved_words[i]) == -1)
+		if (eal_asprintf(&out, "_%s", ctf_reserved_words[i]) == -1)
 			out = NULL;
 		return out;
 	}
diff --git a/lib/librte_eal/common/eal_common_trace_utils.c b/lib/librte_eal/common/eal_common_trace_utils.c
index 6b81fdeec..1773140ac 100644
--- a/lib/librte_eal/common/eal_common_trace_utils.c
+++ b/lib/librte_eal/common/eal_common_trace_utils.c
@@ -253,7 +253,7 @@ eal_trace_dir_args_save(char const *val)
 		return -ENAMETOOLONG;
 	}
 
-	if (asprintf(&dir_path, "%s/", val) == -1) {
+	if (eal_asprintf(&dir_path, "%s/", val) == -1) {
 		trace_err("failed to copy directory: %s", strerror(errno));
 		return -ENOMEM;
 	}
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 4684c4c7d..a5d9c5123 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -738,4 +738,22 @@ void __rte_thread_init(unsigned int lcore_id, rte_cpuset_t *cpuset);
  */
 void __rte_thread_uninit(void);
 
+/**
+ * Allocate a buffer large enough to hold the formatted string
+ * and perform formatting, equivalent to Unix asprintf(3).
+ *
+ * @param buffer
+ *  Receives a pointer to allocated memory, call free(buffer) to deallocate.
+ * @param format
+ *  Format string.
+ * @return
+ *  Number of bytes allocated on success, (-1) on failure.
+ */
+#ifdef RTE_EXEC_ENV_WINDOWS
+__rte_format_printf(2, 3)
+int eal_asprintf(char **buffer, const char *format, ...);
+#else
+#define eal_asprintf asprintf
+#endif
+
 #endif /* _EAL_PRIVATE_H_ */
diff --git a/lib/librte_eal/windows/eal.c b/lib/librte_eal/windows/eal.c
index 1e5f6576f..47495b36a 100644
--- a/lib/librte_eal/windows/eal.c
+++ b/lib/librte_eal/windows/eal.c
@@ -2,6 +2,8 @@
  * Copyright(c) 2019 Intel Corporation
  */
 
+#include <stdarg.h>
+
 #include <fcntl.h>
 #include <io.h>
 #include <share.h>
@@ -410,6 +412,34 @@ rte_eal_init(int argc, char **argv)
 	return fctret;
 }
 
+/* Don't use MinGW asprintf() to have identical code with all toolchains. */
+int
+eal_asprintf(char **buffer, const char *format, ...)
+{
+	int size, ret;
+	va_list arg;
+
+	va_start(arg, format);
+	size = vsnprintf(NULL, 0, format, arg);
+	va_end(arg);
+	if (size < 0)
+		return -1;
+	size++;
+
+	*buffer = malloc(size);
+	if (*buffer == NULL)
+		return -1;
+
+	va_start(arg, format);
+	ret = vsnprintf(*buffer, size, format, arg);
+	va_end(arg);
+	if (ret != size - 1) {
+		free(*buffer);
+		return -1;
+	}
+	return ret;
+}
+
 int
 rte_vfio_container_dma_map(__rte_unused int container_fd,
 			__rte_unused uint64_t vaddr,
-- 
2.29.2


  parent reply	other threads:[~2021-02-21  1:29 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-20 23:29 [dpdk-dev] [PATCH 0/7] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 1/7] eal: add wrappers for POSIX string functions Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 2/7] eal: add macro for maximum path length Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 3/7] eal: add sleep API Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 4/7] eal: add asprintf() internal wrapper Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 5/7] lib: remove POSIX dependencies Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 6/7] drivers: " Dmitry Kozlyuk
2021-02-20 23:29 ` [dpdk-dev] [PATCH 7/7] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-02-21  1:28 ` [dpdk-dev] [PATCH v2 0/7] " Dmitry Kozlyuk
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 1/7] eal: add wrappers for POSIX string functions Dmitry Kozlyuk
2021-02-22 11:47     ` Bruce Richardson
2021-02-22 12:48       ` Nick Connolly
2021-02-22 14:26         ` Bruce Richardson
2021-02-22 18:21           ` Nick Connolly
2021-02-22 22:57           ` Dmitry Kozlyuk
2021-02-23  9:45             ` Bruce Richardson
2021-02-27 20:23               ` Dmitry Kozlyuk
2021-03-01 21:31                 ` Nick Connolly
2021-03-02  0:22                   ` Dmitry Kozlyuk
2021-03-02 11:27                     ` Nick Connolly
2021-03-16  9:51                 ` Thomas Monjalon
2021-02-22 18:07         ` Tyler Retzlaff
2021-02-22 18:36           ` Nick Connolly
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 2/7] eal: add macro for maximum path length Dmitry Kozlyuk
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 3/7] eal: add sleep API Dmitry Kozlyuk
2021-02-21  8:58     ` Tal Shnaiderman
2021-02-21  1:28   ` Dmitry Kozlyuk [this message]
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 5/7] lib: remove POSIX dependencies Dmitry Kozlyuk
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 6/7] drivers: " Dmitry Kozlyuk
2021-02-21  8:59     ` Tal Shnaiderman
2021-02-21 15:54       ` Andrew Rybchenko
2021-02-21 17:05         ` Dmitry Kozlyuk
2021-02-21  1:28   ` [dpdk-dev] [PATCH v2 7/7] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-02-21  8:59     ` Tal Shnaiderman
2021-02-21 10:24       ` Dmitry Kozlyuk
2021-02-21 11:58         ` Tal Shnaiderman
2021-02-21 14:33           ` Dmitry Kozlyuk
2021-02-21 14:28   ` [dpdk-dev] [PATCH v3 0/7] " Dmitry Kozlyuk
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 1/7] eal: add wrappers for POSIX string functions Dmitry Kozlyuk
2021-02-23  7:11       ` Andrew Rybchenko
2021-02-23 21:53         ` Nick Connolly
2021-02-24  7:21           ` Andrew Rybchenko
2021-03-04  6:47       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 2/7] eal: add macro for maximum path length Dmitry Kozlyuk
2021-03-04  6:47       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 3/7] eal: add sleep API Dmitry Kozlyuk
2021-02-23 22:06       ` Nick Connolly
2021-03-04  6:47       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 4/7] eal: add asprintf() internal wrapper Dmitry Kozlyuk
2021-03-04  6:48       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 5/7] lib: remove POSIX dependencies Dmitry Kozlyuk
2021-03-04  6:48       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 6/7] drivers: " Dmitry Kozlyuk
2021-03-04  6:49       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-02-21 14:28     ` [dpdk-dev] [PATCH v3 7/7] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-03-04  6:49       ` [dpdk-dev] [EXTERNAL] " Khoa To
2021-03-04  6:46     ` [dpdk-dev] [EXTERNAL] [PATCH v3 0/7] " Khoa To
2021-03-06  0:04     ` [dpdk-dev] [PATCH v4 0/4] " Dmitry Kozlyuk
2021-03-06  0:04       ` [dpdk-dev] [PATCH v4 1/4] eal: add sleep API Dmitry Kozlyuk
2021-03-06  0:04       ` [dpdk-dev] [PATCH v4 2/4] eal: add asprintf() internal wrapper Dmitry Kozlyuk
2021-03-06 15:27         ` Lance Richardson
2021-03-06  0:04       ` [dpdk-dev] [PATCH v4 3/4] build: indicate usage at build time for public headers Dmitry Kozlyuk
2021-03-16  9:59         ` Thomas Monjalon
2021-03-06  0:05       ` [dpdk-dev] [PATCH v4 4/4] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-03-17 19:23       ` [dpdk-dev] [PATCH v4 0/4] " Ranjit Menon
2021-03-20 11:27       ` [dpdk-dev] [PATCH v5 0/5] " Dmitry Kozlyuk
2021-03-20 11:27         ` [dpdk-dev] [PATCH v5 1/5] eal: add sleep API Dmitry Kozlyuk
2021-03-22  8:57           ` Kinsella, Ray
2021-03-20 11:27         ` [dpdk-dev] [PATCH v5 2/5] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-03-20 11:27         ` [dpdk-dev] [PATCH v5 3/5] eal: make OS shims internal Dmitry Kozlyuk
2021-03-20 11:27         ` [dpdk-dev] [PATCH v5 4/5] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-03-20 11:27         ` [dpdk-dev] [PATCH v5 5/5] net: replace Windows networking shim Dmitry Kozlyuk
2021-03-20 13:05         ` [dpdk-dev] [PATCH v6 0/5] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-03-20 13:05           ` [dpdk-dev] [PATCH v6 1/5] eal: add sleep API Dmitry Kozlyuk
2021-03-20 13:05           ` [dpdk-dev] [PATCH v6 2/5] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-03-26  9:04             ` Thomas Monjalon
2021-03-20 13:05           ` [dpdk-dev] [PATCH v6 3/5] eal: make OS shims internal Dmitry Kozlyuk
2021-03-26  9:12             ` Thomas Monjalon
2021-03-31 21:05               ` Nick Connolly
2021-03-31 21:19                 ` Thomas Monjalon
2021-03-31 21:45                   ` Nick Connolly
2021-03-31 21:55                     ` Thomas Monjalon
2021-04-01 23:10                       ` Dmitry Kozlyuk
2021-04-01 23:18                         ` Thomas Monjalon
2021-03-20 13:05           ` [dpdk-dev] [PATCH v6 4/5] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-03-26  9:22             ` Thomas Monjalon
2021-03-20 13:05           ` [dpdk-dev] [PATCH v6 5/5] net: replace Windows networking shim Dmitry Kozlyuk
2021-03-26  9:28             ` Thomas Monjalon
2021-04-01 23:03               ` Dmitry Kozlyuk
2021-04-03 23:41           ` [dpdk-dev] [PATCH v7 0/5] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-04-03 23:41             ` [dpdk-dev] [PATCH v7 1/5] eal: add sleep API Dmitry Kozlyuk
2021-04-06 14:34               ` Morten Brørup
2021-04-06 23:29                 ` Dmitry Kozlyuk
2021-04-07  7:31                   ` Morten Brørup
2021-04-29 17:09                     ` Tyler Retzlaff
2021-04-03 23:41             ` [dpdk-dev] [PATCH v7 2/5] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-04-10  7:05               ` Nick Connolly
2021-04-03 23:41             ` [dpdk-dev] [PATCH v7 3/5] eal: make OS shims internal Dmitry Kozlyuk
2021-04-03 23:41             ` [dpdk-dev] [PATCH v7 4/5] net: work around s_addr macro on Windows Dmitry Kozlyuk
2021-04-03 23:41             ` [dpdk-dev] [PATCH v7 5/5] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-04-07 22:22             ` [dpdk-dev] [PATCH v8 0/4] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-04-07 22:22               ` [dpdk-dev] [PATCH v8 1/4] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-04-07 22:22               ` [dpdk-dev] [PATCH v8 2/4] eal: make OS shims internal Dmitry Kozlyuk
2021-04-07 22:22               ` [dpdk-dev] [PATCH v8 3/4] net: work around s_addr macro on Windows Dmitry Kozlyuk
2021-04-08 11:26                 ` Olivier Matz
2021-04-07 22:22               ` [dpdk-dev] [PATCH v8 4/4] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-04-08 11:45                 ` Olivier Matz
2021-04-08 19:51                   ` Dmitry Kozlyuk
2021-04-09 13:33                     ` Olivier Matz
2021-04-14 21:47                   ` Thomas Monjalon
2021-04-10 22:47               ` [dpdk-dev] [PATCH v9 0/4] eal/windows: do not expose POSIX symbols Dmitry Kozlyuk
2021-04-10 22:47                 ` [dpdk-dev] [PATCH v9 1/4] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-04-10 22:47                 ` [dpdk-dev] [PATCH v9 2/4] eal: make OS shims internal Dmitry Kozlyuk
2021-04-14 21:33                   ` Thomas Monjalon
2021-04-10 22:47                 ` [dpdk-dev] [PATCH v9 3/4] net: work around s_addr macro on Windows Dmitry Kozlyuk
2021-04-10 22:47                 ` [dpdk-dev] [PATCH v9 4/4] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-04-13  4:46                 ` [dpdk-dev] [PATCH v9 0/4] eal/windows: do not expose POSIX symbols Ranjit Menon
2021-04-13  7:00                   ` Dmitry Kozlyuk
2021-04-14 21:12                     ` Thomas Monjalon
2021-04-14 21:34                       ` Ranjit Menon
2021-04-14 21:42                         ` Thomas Monjalon
2021-04-14 21:47                           ` Ranjit Menon
2021-04-14 22:08                             ` Dmitry Kozlyuk
2021-04-14 22:58                               ` Thomas Monjalon
2021-04-14 22:06                 ` [dpdk-dev] [PATCH v10 " Dmitry Kozlyuk
2021-04-14 22:06                   ` [dpdk-dev] [PATCH v10 1/4] eal/windows: hide asprintf() shim Dmitry Kozlyuk
2021-04-14 22:06                   ` [dpdk-dev] [PATCH v10 2/4] eal: make OS shims internal Dmitry Kozlyuk
2021-04-14 22:06                   ` [dpdk-dev] [PATCH v10 3/4] net: work around s_addr macro on Windows Dmitry Kozlyuk
2021-04-14 22:06                   ` [dpdk-dev] [PATCH v10 4/4] net: provide IP-related API on any OS Dmitry Kozlyuk
2021-04-14 22:50                   ` [dpdk-dev] [PATCH v10 0/4] eal/windows: do not expose POSIX symbols Ranjit Menon
2021-04-14 23:57                     ` Thomas Monjalon
2021-03-17 19:19 ` [dpdk-dev] [PATCH 0/7] " Ranjit Menon

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