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includes/std: Drastically improved std::mem::MagicSearch, added find_string and find_string_in_range

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WerWolv
2024-07-04 20:47:39 +02:00
parent f797c711ca
commit 18f968df5b
1 changed files with 39 additions and 17 deletions
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56
includes/std/mem.pat
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@@ -9,18 +9,15 @@ namespace auto std::mem {
namespace impl {
struct MagicSearchImpl<auto Magic, T> {
if ($ < (std::mem::base_address() + std::mem::size() - builtin::std::string::length(Magic) - 1)) {
char __potentialMagic__[builtin::std::string::length(Magic)] [[hidden, no_unique_address]];
if (__potentialMagic__ == Magic) {
T data [[inline]];
} else {
padding[1];
continue;
}
} else {
padding[1];
continue;
s128 address = builtin::std::mem::find_string_in_range(0, $, builtin::std::mem::size(), Magic);
if (address < 0)
break;
$ = address;
try {
T data [[inline]];
} catch {
T data;
}
};
@@ -63,7 +60,7 @@ namespace auto std::mem {
/**
Gets the base address of the memory
Gets the base address of the data
@return The base address of the memory
*/
fn base_address() {
@@ -71,7 +68,7 @@ namespace auto std::mem {
};
/**
Gets the size of the memory
Gets the size of the data
@return The size of the memory
*/
fn size() {
@@ -79,17 +76,18 @@ namespace auto std::mem {
};
/**
Finds a sequence of bytes in the memory
Finds a sequence of bytes in the data
@param occurrence_index The index of the occurrence to find
@param bytes The bytes to find
@return The address of the sequence
*/
fn find_sequence(u128 occurrence_index, auto ... bytes) {
return builtin::std::mem::find_sequence_in_range(occurrence_index, builtin::std::mem::base_address(), builtin::std::mem::size(), bytes);
const u128 address = builtin::std::mem::base_address();
return builtin::std::mem::find_sequence_in_range(occurrence_index, address, address + builtin::std::mem::size(), bytes);
};
/**
Finds a sequence of bytes in a specific region of the memory
Finds a sequence of bytes in a specific region of the data
@param occurrence_index The index of the occurrence to find
@param offsetFrom The offset from which to start searching
@param offsetTo The offset to which to search
@@ -100,6 +98,30 @@ namespace auto std::mem {
return builtin::std::mem::find_sequence_in_range(occurrence_index, offsetFrom, offsetTo, bytes);
};
/**
Finds a string in the data
@param occurrence_index The index of the occurrence to find
@param string The string to find
@return The address of the sequence
*/
fn find_string(u128 occurrence_index, str string) {
const u128 address = builtin::std::mem::base_address();
return builtin::std::mem::find_string_in_range(occurrence_index, address, address + builtin::std::mem::size(), string);
};
/**
Finds a string in a specific region of the data
@param occurrence_index The index of the occurrence to find
@param offsetFrom The offset from which to start searching
@param offsetTo The offset to which to search
@param string The string to find
@return The address of the sequence
*/
fn find_string_in_range(u128 occurrence_index, u128 offsetFrom, u128 offsetTo, str string) {
return builtin::std::mem::find_string_in_range(occurrence_index, offsetFrom, offsetTo, string);
};
/**
Reads a unsigned value from the memory
@param address The address to read from