diff options
Diffstat (limited to 'erts/emulator/beam/erl_driver.h')
| -rw-r--r-- | erts/emulator/beam/erl_driver.h | 87 |
1 files changed, 50 insertions, 37 deletions
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h index 25483380ed..e80eae0b86 100644 --- a/erts/emulator/beam/erl_driver.h +++ b/erts/emulator/beam/erl_driver.h @@ -85,6 +85,7 @@ #include "erl_drv_nif.h" #include <stdlib.h> +#include <string.h> /* ssize_t on Mac OS X */ #if defined(VXWORKS) # include <ioLib.h> @@ -134,8 +135,8 @@ typedef struct { #define DO_WRITE ERL_DRV_WRITE #define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed) -#define ERL_DRV_EXTENDED_MAJOR_VERSION 1 -#define ERL_DRV_EXTENDED_MINOR_VERSION 5 +#define ERL_DRV_EXTENDED_MAJOR_VERSION 2 +#define ERL_DRV_EXTENDED_MINOR_VERSION 0 /* * The emulator will refuse to load a driver with different major @@ -183,6 +184,14 @@ typedef long long ErlDrvSInt64; #error No 64-bit integer type #endif +#if defined(__WIN32__) +typedef ErlDrvUInt ErlDrvSizeT; +typedef ErlDrvSInt ErlDrvSSizeT; +#else +typedef size_t ErlDrvSizeT; +typedef ssize_t ErlDrvSSizeT; +#endif + /* * A binary as seen in a driver. Note that a binary should never be * altered by the driver when it has been sent to Erlang. @@ -249,7 +258,7 @@ typedef struct { typedef struct erl_io_vec { int vsize; /* length of vectors */ - int size; /* total size in bytes */ + ErlDrvSizeT size; /* total size in bytes */ SysIOVec* iov; ErlDrvBinary** binv; } ErlIOVec; @@ -290,8 +299,8 @@ typedef struct erl_drv_entry { void (*stop)(ErlDrvData drv_data); /* called when port is closed, and when the emulator is halted. */ - void (*output)(ErlDrvData drv_data, char *buf, int len); - /* called when we have output from erlang to + void (*output)(ErlDrvData drv_data, char *buf, ErlDrvSizeT len); + /* called when we have output from erlang to the port */ void (*ready_input)(ErlDrvData drv_data, ErlDrvEvent event); /* called when we have input from one of @@ -304,10 +313,10 @@ typedef struct erl_drv_entry { void (*finish)(void); /* called before unloading the driver - DYNAMIC DRIVERS ONLY */ void *handle; /* Reserved -- Used by emulator internally */ - int (*control)(ErlDrvData drv_data, unsigned int command, char *buf, - int len, char **rbuf, int rlen); - /* "ioctl" for drivers - invoked by - port_control/3 */ + ErlDrvSSizeT (*control)(ErlDrvData drv_data, unsigned int command, + char *buf, ErlDrvSizeT len, char **rbuf, + ErlDrvSizeT rlen); /* "ioctl" for drivers - invoked by + port_control/3 */ void (*timeout)(ErlDrvData drv_data); /* Handling of timeout in driver */ void (*outputv)(ErlDrvData drv_data, ErlIOVec *ev); /* called when we have output from erlang @@ -318,10 +327,12 @@ typedef struct erl_drv_entry { closed, and there is data in the driver queue that needs to be flushed before 'stop' can be called */ - int (*call)(ErlDrvData drv_data, unsigned int command, char *buf, - int len, char **rbuf, int rlen, unsigned int *flags); - /* Works mostly like 'control', a synchronous - call into the driver. */ + ErlDrvSSizeT (*call)(ErlDrvData drv_data, + unsigned int command, char *buf, ErlDrvSizeT len, + char **rbuf, ErlDrvSizeT rlen, + unsigned int *flags); /* Works mostly like 'control', + a synchronous + call into the driver. */ void (*event)(ErlDrvData drv_data, ErlDrvEvent event, ErlDrvEventData event_data); /* Called when an event selected by @@ -373,14 +384,16 @@ typedef struct erl_drv_entry { EXTERN int driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on); EXTERN int driver_event(ErlDrvPort port, ErlDrvEvent event, ErlDrvEventData event_data); -EXTERN int driver_output(ErlDrvPort port, char *buf, int len); -EXTERN int driver_output2(ErlDrvPort port, char *hbuf, int hlen, - char *buf, int len); -EXTERN int driver_output_binary(ErlDrvPort port, char *hbuf, int hlen, - ErlDrvBinary* bin, int offset, int len); -EXTERN int driver_outputv(ErlDrvPort port, char* hbuf, int hlen, ErlIOVec *ev, - int skip); -EXTERN int driver_vec_to_buf(ErlIOVec *ev, char *buf, int len); + +EXTERN int driver_output(ErlDrvPort port, char *buf, ErlDrvSizeT len); +EXTERN int driver_output2(ErlDrvPort port, char *hbuf, ErlDrvSizeT hlen, + char *buf, ErlDrvSizeT len); +EXTERN int driver_output_binary(ErlDrvPort port, char *hbuf, ErlDrvSizeT hlen, + ErlDrvBinary* bin, + ErlDrvSizeT offset, ErlDrvSizeT len); +EXTERN int driver_outputv(ErlDrvPort port, char* hbuf, ErlDrvSizeT hlen, + ErlIOVec *ev, ErlDrvSizeT skip); +EXTERN ErlDrvSizeT driver_vec_to_buf(ErlIOVec *ev, char *buf, ErlDrvSizeT len); EXTERN int driver_set_timer(ErlDrvPort port, unsigned long time); EXTERN int driver_cancel_timer(ErlDrvPort port); EXTERN int driver_read_timer(ErlDrvPort port, unsigned long *time_left); @@ -441,8 +454,8 @@ EXTERN int get_port_flags(ErlDrvPort port); * since the binary is a shared object it MUST be written once. */ -EXTERN ErlDrvBinary* driver_alloc_binary(int size); -EXTERN ErlDrvBinary* driver_realloc_binary(ErlDrvBinary *bin, int size); +EXTERN ErlDrvBinary* driver_alloc_binary(ErlDrvSizeT size); +EXTERN ErlDrvBinary* driver_realloc_binary(ErlDrvBinary *bin, ErlDrvSizeT size); EXTERN void driver_free_binary(ErlDrvBinary *bin); /* Referenc count on driver binaries */ @@ -451,24 +464,24 @@ EXTERN ErlDrvSInt driver_binary_inc_refc(ErlDrvBinary *dbp); EXTERN ErlDrvSInt driver_binary_dec_refc(ErlDrvBinary *dbp); /* Allocation interface */ -EXTERN void *driver_alloc(size_t size); -EXTERN void *driver_realloc(void *ptr, size_t size); +EXTERN void *driver_alloc(ErlDrvSizeT size); +EXTERN void *driver_realloc(void *ptr, ErlDrvSizeT size); EXTERN void driver_free(void *ptr); /* Queue interface */ -EXTERN int driver_enq(ErlDrvPort port, char* buf, int len); -EXTERN int driver_pushq(ErlDrvPort port, char* buf, int len); -EXTERN int driver_deq(ErlDrvPort port, int size); -EXTERN int driver_sizeq(ErlDrvPort port); -EXTERN int driver_enq_bin(ErlDrvPort port, ErlDrvBinary *bin, int offset, - int len); -EXTERN int driver_pushq_bin(ErlDrvPort port, ErlDrvBinary *bin, int offset, - int len); - -EXTERN int driver_peekqv(ErlDrvPort port, ErlIOVec *ev); +EXTERN int driver_enq(ErlDrvPort port, char* buf, ErlDrvSizeT len); +EXTERN int driver_pushq(ErlDrvPort port, char* buf, ErlDrvSizeT len); +EXTERN ErlDrvSizeT driver_deq(ErlDrvPort port, ErlDrvSizeT size); +EXTERN ErlDrvSizeT driver_sizeq(ErlDrvPort port); +EXTERN int driver_enq_bin(ErlDrvPort port, ErlDrvBinary *bin, ErlDrvSizeT offset, + ErlDrvSizeT len); +EXTERN int driver_pushq_bin(ErlDrvPort port, ErlDrvBinary *bin, ErlDrvSizeT offset, + ErlDrvSizeT len); + +EXTERN ErlDrvSizeT driver_peekqv(ErlDrvPort port, ErlIOVec *ev); EXTERN SysIOVec* driver_peekq(ErlDrvPort port, int *vlen); -EXTERN int driver_enqv(ErlDrvPort port, ErlIOVec *ev, int skip); -EXTERN int driver_pushqv(ErlDrvPort port, ErlIOVec *ev, int skip); +EXTERN int driver_enqv(ErlDrvPort port, ErlIOVec *ev, ErlDrvSizeT skip); +EXTERN int driver_pushqv(ErlDrvPort port, ErlIOVec *ev, ErlDrvSizeT skip); /* * Add and remove driver entries. |