61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
package geos
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/*
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#cgo LDFLAGS: -lgeos_c
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#include "geos_c.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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extern void goLogString(char *msg);
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extern void goSendQueryResult(size_t, void *);
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void debug_wrap(const char *fmt, ...) {
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va_list a_list;
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va_start(a_list, fmt);
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char buf[1024];
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vsnprintf(buf, sizeof(buf), fmt, a_list);
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va_end(a_list);
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goLogString((char *)&buf);
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}
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void devnull(const char *fmt, ...) {
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}
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GEOSContextHandle_t initGEOS_r_debug() {
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return initGEOS_r(devnull, debug_wrap);
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}
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void initGEOS_debug() {
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return initGEOS(devnull, debug_wrap);
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}
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// wrap goIndexSendQueryResult
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void IndexQuerySendCallback(void *item, void *userdata) {
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goIndexSendQueryResult((size_t)item, userdata);
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}
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void IndexAdd(
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GEOSContextHandle_t handle,
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GEOSSTRtree *tree,
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const GEOSGeometry *g,
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size_t id)
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{
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// instead of storing a void *, we just store our id
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// this is safe since GEOS doesn't access the item pointer
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GEOSSTRtree_insert_r(handle, tree, g, (void *)id);
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}
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// query with our custom callback
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void IndexQuery(
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GEOSContextHandle_t handle,
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GEOSSTRtree *tree,
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const GEOSGeometry *g,
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void *userdata)
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{
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GEOSSTRtree_query_r(handle, tree, g, IndexQuerySendCallback, userdata);
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}
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*/
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import "C"
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