mirror of https://github.com/ceph/go-ceph
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
//go:build ceph_preview
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// +build ceph_preview
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package rados
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// #cgo LDFLAGS: -lrados
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// #include <stdlib.h>
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// #include <rados/librados.h>
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//
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import "C"
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import (
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"unsafe"
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)
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// writeOpExecStep - exec step in write operation.
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type writeOpExecStep struct {
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withoutFree
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inBuffPtr *C.char
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inBuffLen C.size_t
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prval C.int
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}
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// newWriteOpExecStep - init new *writeOpExecStep.
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func newWriteOpExecStep(in []byte) *writeOpExecStep {
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es := &writeOpExecStep{
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prval: 0,
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}
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if len(in) > 0 {
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es.inBuffPtr = (*C.char)(unsafe.Pointer(&in[0]))
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es.inBuffLen = C.size_t(len(in))
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}
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return es
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}
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// update - update state operation.
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func (es *writeOpExecStep) update() error {
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return getError(es.prval)
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}
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// Exec executes an OSD class method on an object.
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// See rados_exec() in the RADOS C api documentation for a general description.
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//
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// Implements:
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//
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// void rados_write_op_exec(rados_write_op_t write_op,
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// const char *cls,
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// const char *method,
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// const char *in_buf,
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// size_t in_len,
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// int *prval)
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func (w *WriteOp) Exec(clsName, method string, in []byte) {
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cClsName := C.CString(clsName)
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defer C.free(unsafe.Pointer(cClsName))
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cMethod := C.CString(method)
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defer C.free(unsafe.Pointer(cMethod))
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es := newWriteOpExecStep(in)
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w.steps = append(w.steps, es)
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C.rados_write_op_exec(
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w.op,
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cClsName,
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cMethod,
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es.inBuffPtr,
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es.inBuffLen,
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&es.prval,
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)
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}
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