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janet/ds.h
Calvin Rose 6677dff337 Rename everything to be prefixed with gst. No particluar meaning
or reason for that name, but its available and it irked me to see
non prefixed c code for something that is supposed to be emeddable.
2017-02-15 21:02:00 -05:00

87 lines
2.5 KiB
C

#ifndef ds_h_INCLUDED
#define ds_h_INCLUDED
#include "datatypes.h"
/*
* Data type flags
*/
#define GST_DS_LOCKED 0x01
/****/
/* Buffer functions */
/****/
/* Create a new buffer */
GstBuffer *gst_buffer(Gst *vm, uint32_t capacity);
/* Ensure the buffer has enough capacity */
void gst_buffer_ensure(Gst *vm, GstBuffer *buffer, uint32_t capacity);
/* Get a value from the buffer */
int gst_buffer_get(GstBuffer *buffer, uint32_t index);
/* Push a value to the buffer */
void gst_buffer_push(Gst *vm, GstBuffer *buffer, uint8_t c);
/* Append a piece of memory to the buffer */
void gst_buffer_append(Gst *vm, GstBuffer *buffer, uint8_t *string, uint32_t length);
/* Convert the buffer to a string */
uint8_t *gst_buffer_to_string(Gst * vm, GstBuffer * buffer);
/* Define a push function for pushing a certain type to the buffer */
#define BUFFER_DEFINE(name, type) \
static void gst_buffer_push_##name(Gst * vm, GstBuffer * buffer, type x) { \
union { type t; uint8_t bytes[sizeof(type)]; } u; \
u.t = x; gst_buffer_append(vm, buffer, u.bytes, sizeof(type)); \
}
/****/
/* Array functions */
/****/
/* Create a new Array */
GstArray *gst_array(Gst *vm, uint32_t capacity);
/* Get a value of an array with bounds checking. Returns nil if
* outside bounds. */
GstValue gst_array_get(GstArray *array, uint32_t index);
/* Set a value in the array. Does bounds checking but will not grow
* or shrink the array */
int gst_array_set(GstArray *array, uint32_t index, GstValue x);
/* Ensure that the internal memory hash enough space for capacity items */
void gst_array_ensure(Gst *vm, GstArray *array, uint32_t capacity);
/* Set a value in an array. Will also append to the array if the index is
* greater than the current max index. */
void gst_array_push(Gst *vm, GstArray *array, GstValue x);
/* Pop the last item in the array, or return NIL if empty */
GstValue gst_array_pop(GstArray *array);
/* Look at the top most item of an Array */
GstValue ArrayPeek(GstArray *array);
/****/
/* Object functions */
/****/
/* Create a new object */
GstObject *gst_object(Gst *vm, uint32_t capacity);
/* Get a value out of the dictionary */
GstValue gst_object_get(GstObject *obj, GstValue key);
/* Get a Value from the dictionary, but remove it at the same
* time. */
GstValue gst_object_remove(Gst *vm, GstObject *obj, GstValue key);
/* Put a value into the dictionary. Returns 1 if successful, 0 if out of memory.
* The VM pointer is needed for memory allocation. */
void gst_object_put(Gst *vm, GstObject *obj, GstValue key, GstValue value);
#endif // ds_h_INCLUDED