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Update unsafety of C function pointers for new bindgen

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This commit is contained in:
John Gallagher
2015-12-13 08:40:51 -05:00
parent e94a5b8411
commit b883ab651d
2 changed files with 23 additions and 25 deletions
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16
src/trace.rs
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@@ -67,9 +67,9 @@ impl Connection {
/// There can only be a single tracer defined for each database connection.
/// Setting a new tracer clears the old one.
pub fn trace(&mut self, trace_fn: Option<fn(&str)>) {
extern "C" fn trace_callback(p_arg: *mut c_void, z_sql: *const c_char) {
let trace_fn: fn(&str) = unsafe { mem::transmute(p_arg) };
let c_slice = unsafe { CStr::from_ptr(z_sql).to_bytes() };
unsafe extern "C" fn trace_callback(p_arg: *mut c_void, z_sql: *const c_char) {
let trace_fn: fn(&str) = mem::transmute(p_arg);
let c_slice = CStr::from_ptr(z_sql).to_bytes();
if let Ok(s) = str::from_utf8(c_slice) {
trace_fn(s);
}
@@ -91,11 +91,11 @@ impl Connection {
/// There can only be a single profiler defined for each database connection.
/// Setting a new profiler clears the old one.
pub fn profile(&mut self, profile_fn: Option<fn(&str, Duration)>) {
extern "C" fn profile_callback(p_arg: *mut c_void,
z_sql: *const c_char,
nanoseconds: u64) {
let profile_fn: fn(&str, Duration) = unsafe { mem::transmute(p_arg) };
let c_slice = unsafe { CStr::from_ptr(z_sql).to_bytes() };
unsafe extern "C" fn profile_callback(p_arg: *mut c_void,
z_sql: *const c_char,
nanoseconds: u64) {
let profile_fn: fn(&str, Duration) = mem::transmute(p_arg);
let c_slice = CStr::from_ptr(z_sql).to_bytes();
if let Ok(s) = str::from_utf8(c_slice) {
const NANOS_PER_SEC: u64 = 1_000_000_000;