libzstd_rs_sys/lib/common/
zstd_trace.rs

1use libc::size_t;
2
3use crate::lib::compress::zstd_compress::{ZSTD_CCtx, ZSTD_CCtx_params_s, ZSTD_CCtx_s};
4use crate::lib::decompress::{ZSTD_DCtx, ZSTD_DCtx_s};
5
6#[derive(Default)]
7#[repr(C)]
8pub struct ZSTD_Trace {
9    pub version: core::ffi::c_uint,
10    pub streaming: core::ffi::c_int,
11    pub dictionaryID: core::ffi::c_uint,
12    pub dictionaryIsCold: bool,
13    _padding: [u8; 3],
14    pub dictionarySize: size_t,
15    pub uncompressedSize: size_t,
16    pub compressedSize: size_t,
17    pub params: *const ZSTD_CCtx_params_s,
18    pub cctx: *const ZSTD_CCtx_s,
19    pub dctx: *const ZSTD_DCtx_s,
20}
21
22pub type ZSTD_TraceCtx = core::ffi::c_ulonglong;
23
24#[inline]
25pub(crate) fn ZSTD_trace_compress_begin(_cctx: *const ZSTD_CCtx) -> ZSTD_TraceCtx {
26    #[cfg(feature = "trace")]
27    unsafe {
28        return statics::ZSTD_trace_compress_begin(_cctx);
29    }
30
31    #[cfg(not(feature = "trace"))]
32    0
33}
34
35#[inline]
36pub(crate) fn ZSTD_trace_compress_end(_ctx: ZSTD_TraceCtx, _trace: *const ZSTD_Trace) {
37    #[cfg(feature = "trace")]
38    unsafe {
39        return statics::ZSTD_trace_compress_end(_ctx, _trace);
40    }
41}
42
43#[inline]
44pub(crate) fn ZSTD_trace_decompress_begin(_dctx: *const ZSTD_DCtx) -> ZSTD_TraceCtx {
45    #[cfg(feature = "trace")]
46    unsafe {
47        return statics::ZSTD_trace_decompress_begin(_dctx);
48    }
49
50    #[cfg(not(feature = "trace"))]
51    0
52}
53
54#[inline]
55pub(crate) fn ZSTD_trace_decompress_end(_ctx: ZSTD_TraceCtx, _trace: *const ZSTD_Trace) {
56    #[cfg(feature = "trace")]
57    unsafe {
58        return statics::ZSTD_trace_decompress_end(_ctx, _trace);
59    }
60}
61
62#[cfg(feature = "trace")]
63mod statics {
64    use super::{ZSTD_CCtx, ZSTD_Trace, ZSTD_TraceCtx};
65    use crate::lib::decompress::ZSTD_DCtx;
66
67    #[expect(
68        improper_ctypes,
69        reason = "ZSTD_CCtx contains types that are not FFI-safe. This is fine as it is opaque to C"
70    )]
71    extern "C" {
72        pub(super) fn ZSTD_trace_compress_begin(cctx: *const ZSTD_CCtx) -> ZSTD_TraceCtx;
73        pub(super) fn ZSTD_trace_compress_end(ctx: ZSTD_TraceCtx, trace: *const ZSTD_Trace);
74        pub(super) fn ZSTD_trace_decompress_begin(dctx: *const ZSTD_DCtx) -> ZSTD_TraceCtx;
75        pub(super) fn ZSTD_trace_decompress_end(ctx: ZSTD_TraceCtx, trace: *const ZSTD_Trace);
76    }
77}
libzstd_rs_sys/lib/common/zstd_trace.rs

libzstd_rs_sys/lib/common/
zstd_trace.rs
