discord_cassandra_cpp/cassandra/
batch.rs1use crate::cassandra::consistency::Consistency;
2use crate::cassandra::error::*;
3use crate::cassandra::future::CassFuture;
4use crate::cassandra::policy::retry::RetryPolicy;
5use crate::cassandra::statement::Statement;
6use crate::cassandra::util::{Protected, ProtectedInner, ProtectedWithSession};
7use crate::{session_scope, CassResult, Session};
8
9use crate::cassandra_sys::cass_batch_add_statement;
10use crate::cassandra_sys::cass_batch_free;
11use crate::cassandra_sys::cass_batch_new;
12use crate::cassandra_sys::cass_batch_set_consistency;
13use crate::cassandra_sys::cass_batch_set_custom_payload;
14use crate::cassandra_sys::cass_batch_set_is_idempotent;
15use crate::cassandra_sys::cass_batch_set_retry_policy;
16use crate::cassandra_sys::cass_batch_set_serial_consistency;
17use crate::cassandra_sys::cass_batch_set_timestamp;
18use crate::cassandra_sys::cass_bool_t::cass_false;
19use crate::cassandra_sys::cass_bool_t::cass_true;
20use crate::cassandra_sys::cass_custom_payload_free;
21use crate::cassandra_sys::cass_custom_payload_new;
22use crate::cassandra_sys::cass_custom_payload_set_n;
23use crate::cassandra_sys::cass_session_execute_batch;
24use crate::cassandra_sys::CassBatch as _Batch;
25use crate::cassandra_sys::CassBatchType_;
26use crate::cassandra_sys::CassConsistency;
27use crate::cassandra_sys::CassCustomPayload as _CassCustomPayload;
28use std::ffi::NulError;
29use std::os::raw::c_char;
30
31#[derive(Debug)]
32struct BatchInner(*mut _Batch);
33
34#[derive(Debug)]
37pub struct Batch<T = session_scope::Bound>(BatchInner, Session<T>);
38
39unsafe impl Send for BatchInner {}
42
43impl ProtectedInner<*mut _Batch> for BatchInner {
44 #[inline(always)]
45 fn inner(&self) -> *mut _Batch {
46 self.0
47 }
48}
49
50impl Protected<*mut _Batch> for BatchInner {
51 #[inline(always)]
52 fn build(inner: *mut _Batch) -> Self {
53 if inner.is_null() {
54 panic!("Unexpected null pointer")
55 };
56 Self(inner)
57 }
58}
59
60impl<T> ProtectedInner<*mut _Batch> for Batch<T> {
61 #[inline(always)]
62 fn inner(&self) -> *mut _Batch {
63 self.0.inner()
64 }
65}
66
67impl<S> ProtectedWithSession<*mut _Batch, S> for Batch<S> {
68 #[inline(always)]
69 fn build(inner: *mut _Batch, session: Session<S>) -> Self {
70 Self(BatchInner::build(inner), session)
71 }
72
73 #[inline(always)]
74 fn session(&self) -> &Session<S> {
75 &self.1
76 }
77}
78
79#[derive(Debug)]
81pub struct CustomPayload(*mut _CassCustomPayload);
82
83impl ProtectedInner<*mut _CassCustomPayload> for CustomPayload {
84 fn inner(&self) -> *mut _CassCustomPayload {
85 self.0
86 }
87}
88
89impl Protected<*mut _CassCustomPayload> for CustomPayload {
90 fn build(inner: *mut _CassCustomPayload) -> Self {
91 if inner.is_null() {
92 panic!("Unexpected null pointer")
93 };
94 CustomPayload(inner)
95 }
96}
97
98impl Default for CustomPayload {
99 fn default() -> Self {
101 unsafe { CustomPayload(cass_custom_payload_new()) }
102 }
103}
104impl CustomPayload {
105 pub fn set(&self, name: String, value: &[u8]) -> Result<()> {
107 unsafe {
108 let name_ptr = name.as_ptr() as *const c_char;
109 Ok(cass_custom_payload_set_n(
110 self.0,
111 name_ptr,
112 name.len(),
113 value.as_ptr(),
114 value.len(),
115 ))
116 }
117 }
118}
119
120impl Drop for CustomPayload {
121 fn drop(&mut self) {
122 unsafe { cass_custom_payload_free(self.0) }
123 }
124}
125
126impl Drop for BatchInner {
127 fn drop(&mut self) {
130 unsafe { cass_batch_free(self.0) }
131 }
132}
133
134impl<T> Batch<T> {
135 pub(crate) fn new(batch_type: BatchType, session: Session<T>) -> Self {
137 unsafe { Batch(BatchInner(cass_batch_new(batch_type.inner())), session) }
138 }
139
140 pub fn session(&self) -> &Session<T> {
142 ProtectedWithSession::session(self)
143 }
144
145 pub async fn execute(self) -> Result<CassResult> {
147 let (batch, session) = (self.0, self.1);
148 let execute_future = {
149 let execute_batch =
150 unsafe { cass_session_execute_batch(session.inner(), batch.inner()) };
151 CassFuture::build(session, execute_batch)
152 };
153 execute_future.await
154 }
155
156 pub fn set_consistency(&mut self, consistency: Consistency) -> Result<&mut Self> {
158 unsafe { cass_batch_set_consistency(self.inner(), consistency.inner()).to_result(self) }
159 }
160
161 pub fn set_serial_consistency(&mut self, consistency: Consistency) -> Result<&mut Self> {
165 unsafe {
166 cass_batch_set_serial_consistency(self.inner(), consistency.inner()).to_result(self)
167 }
168 }
169
170 pub fn set_timestamp(&mut self, timestamp: i64) -> Result<&mut Self> {
172 unsafe { cass_batch_set_timestamp(self.inner(), timestamp).to_result(self) }
173 }
174
175 pub fn set_retry_policy(&mut self, retry_policy: RetryPolicy) -> Result<&mut Self> {
177 unsafe { cass_batch_set_retry_policy(self.inner(), retry_policy.inner()).to_result(self) }
178 }
179
180 pub fn set_custom_payload(&mut self, custom_payload: CustomPayload) -> Result<&mut Self> {
182 unsafe { cass_batch_set_custom_payload(self.inner(), custom_payload.0).to_result(self) }
183 }
184
185 pub fn add_statement(&mut self, statement: Statement<T>) -> Result<&mut Self> {
187 if self.session() != statement.session() {
189 return Err(ErrorKind::BatchSessionMismatch.into());
190 }
191 unsafe { cass_batch_add_statement(self.inner(), statement.inner()).to_result(self) }
192 }
193
194 pub fn set_is_idempotent(&mut self, is_idempotent: bool) -> Result<&mut Self> {
197 unsafe {
198 cass_batch_set_is_idempotent(
199 self.inner(),
200 if is_idempotent { cass_true } else { cass_false },
201 )
202 .to_result(self)
203 }
204 }
205}
206
207#[derive(Debug, Eq, PartialEq, Copy, Clone, Hash)]
209#[allow(missing_docs)] #[allow(non_camel_case_types)] pub enum BatchType {
212 LOGGED,
213 UNLOGGED,
214 COUNTER,
215}
216
217enhance_nullary_enum!(BatchType, CassBatchType_, {
218 (LOGGED, CASS_BATCH_TYPE_LOGGED, "LOGGED"),
219 (UNLOGGED, CASS_BATCH_TYPE_UNLOGGED, "UNLOGGED"),
220 (COUNTER, CASS_BATCH_TYPE_COUNTER, "COUNTER"),
221});