X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;ds=inline;f=libserialport_internal.h;h=ecf8fe95fa51ce4b7993df81d39f873538a5718e;hb=a06a765515482976bcbd60526bd638b3d10b14e7;hp=8ef8376f9a5d29b1b176adcb4b9bb879b8049b86;hpb=78940e69219b6d9aee747bac0677b738531a089d;p=libserialport.git
diff --git a/libserialport_internal.h b/libserialport_internal.h
index 8ef8376..ecf8fe9 100644
--- a/libserialport_internal.h
+++ b/libserialport_internal.h
@@ -18,19 +18,47 @@
* along with this program. If not, see .
*/
-#ifdef __linux__
-#define _BSD_SOURCE // for timeradd, timersub, timercmp
+#ifndef LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
+#define LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
+
+/* These MSVC-specific defines must appear before other headers.*/
+#ifdef _MSC_VER
+#define _CRT_NONSTDC_NO_DEPRECATE
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+/* These feature test macros must appear before other headers.*/
+#if defined(__linux__) || defined(__CYGWIN__)
+/* For timeradd, timersub, timercmp, realpath. */
+#define _BSD_SOURCE 1 /* for glibc < 2.19 */
+#define _DEFAULT_SOURCE 1 /* for glibc >= 2.20 */
+/* For clock_gettime and associated types. */
+#define _POSIX_C_SOURCE 199309L
+#endif
+
+#ifdef LIBSERIALPORT_ATBUILD
+/* If building with autoconf, include the generated config.h. */
+#include
+#endif
+
+#ifdef LIBSERIALPORT_MSBUILD
+/* If building with MS tools, define necessary things that
+ would otherwise appear in config.h. */
+#define SP_PRIV
#endif
+#include "libserialport.h"
+
#include
#include
#include
#include
-#include
#include
#include
#include
#include
+#include
+#include
#ifdef _WIN32
#include
#include
@@ -41,13 +69,22 @@
static const GUID name = { l,w1,w2,{ b1,b2,b3,b4,b5,b6,b7,b8 } }
#include
#include
+/* The largest size that can be passed to WriteFile() safely
+ * on any architecture. This arises from the expression:
+ * PAGE_SIZE * (65535 - sizeof(MDL)) / sizeof(ULONG_PTR)
+ * and this worst-case value is found on x64. */
+#define WRITEFILE_MAX_SIZE 33525760
#else
#include
#include
#include
#include
-#include
+#include
#include
+#include
+#ifdef HAVE_SYS_FILE_H
+#include
+#endif
#endif
#ifdef __APPLE__
#include
@@ -55,16 +92,18 @@
#include
#include
#include
+#include
#endif
#ifdef __linux__
#include
-#ifndef __ANDROID__
-#include "linux/serial.h"
+/* Android only has linux/serial.h from platform 21 onwards. */
+#if !(defined(__ANDROID__) && (__ANDROID_API__ < 21))
+#include
#endif
#include "linux_termios.h"
/* TCGETX/TCSETX is not available everywhere. */
-#if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX)
+#if defined(TCGETX) && defined(TCSETX) && defined(HAVE_STRUCT_TERMIOX)
#define USE_TERMIOX
#endif
#endif
@@ -77,8 +116,18 @@
#define TIOCOUTQ FIONWRITE
#endif
+/*
+ * O_CLOEXEC is not available everywhere, fallback to not setting the
+ * flag on those systems.
+ */
+#ifndef _WIN32
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+#endif
+
/* Non-standard baudrates are not available everywhere. */
-#if defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED)
+#if (defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED)) && HAVE_DECL_BOTHER
#define USE_TERMIOS_SPEED
#endif
@@ -102,8 +151,10 @@ struct sp_port {
OVERLAPPED read_ovl;
OVERLAPPED wait_ovl;
DWORD events;
- BYTE pending_byte;
+ BYTE *write_buf;
+ DWORD write_buf_size;
BOOL writing;
+ BOOL wait_running;
#else
int fd;
#endif
@@ -155,10 +206,7 @@ struct std_baudrate {
int value;
};
-extern const struct std_baudrate std_baudrates[];
-
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
-#define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates)
extern void (*sp_debug_handler)(const char *format, ...);
@@ -177,18 +225,19 @@ extern void (*sp_debug_handler)(const char *format, ...);
#define RETURN() do { \
DEBUG_FMT("%s returning", __func__); \
return; \
-} while(0)
+} while (0)
#define RETURN_CODE(x) do { \
DEBUG_FMT("%s returning " #x, __func__); \
return x; \
} while (0)
#define RETURN_CODEVAL(x) do { \
switch (x) { \
- case SP_OK: RETURN_CODE(SP_OK); \
- case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \
- case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \
- case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \
- case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \
+ case SP_OK: RETURN_CODE(SP_OK); \
+ case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \
+ case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \
+ case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \
+ case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \
+ default: RETURN_CODE(SP_ERR_FAIL); \
} \
} while (0)
#define RETURN_OK() RETURN_CODE(SP_OK);
@@ -220,10 +269,43 @@ extern void (*sp_debug_handler)(const char *format, ...);
#define TRACE(fmt, ...) DEBUG_FMT("%s(" fmt ") called", __func__, __VA_ARGS__)
#define TRACE_VOID() DEBUG_FMT("%s() called", __func__)
-#define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0)
+#define TRY(x) do { int retval = x; if (retval != SP_OK) RETURN_CODEVAL(retval); } while (0)
SP_PRIV struct sp_port **list_append(struct sp_port **list, const char *portname);
/* OS-specific Helper functions. */
SP_PRIV enum sp_return get_port_details(struct sp_port *port);
SP_PRIV enum sp_return list_ports(struct sp_port ***list);
+
+/* Timing abstraction */
+
+struct time {
+#ifdef _WIN32
+ int64_t ticks;
+#else
+ struct timeval tv;
+#endif
+};
+
+struct timeout {
+ unsigned int ms, limit_ms;
+ struct time start, now, end, delta, delta_max;
+ struct timeval delta_tv;
+ bool calls_started, overflow;
+};
+
+SP_PRIV void time_get(struct time *time);
+SP_PRIV void time_set_ms(struct time *time, unsigned int ms);
+SP_PRIV void time_add(const struct time *a, const struct time *b, struct time *result);
+SP_PRIV void time_sub(const struct time *a, const struct time *b, struct time *result);
+SP_PRIV bool time_greater(const struct time *a, const struct time *b);
+SP_PRIV void time_as_timeval(const struct time *time, struct timeval *tv);
+SP_PRIV unsigned int time_as_ms(const struct time *time);
+SP_PRIV void timeout_start(struct timeout *timeout, unsigned int timeout_ms);
+SP_PRIV void timeout_limit(struct timeout *timeout, unsigned int limit_ms);
+SP_PRIV bool timeout_check(struct timeout *timeout);
+SP_PRIV void timeout_update(struct timeout *timeout);
+SP_PRIV struct timeval *timeout_timeval(struct timeout *timeout);
+SP_PRIV unsigned int timeout_remaining_ms(struct timeout *timeout);
+
+#endif