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Updates to API

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This commit is contained in:
Christoffer Lerno
2025-07-14 03:44:52 +02:00
parent 2bd289ebd6
commit f082cac762
2 changed files with 22 additions and 10 deletions
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6
lib/std/core/allocators/vmem.c3
View File

@@ -206,7 +206,7 @@ macro void? protect(Vmem* mem, usz after) @local
mem.memory.commit(page_start, page_len)!;
if (mem.options.protect_unused_pages || over_high_water)
{
mem.memory.set_access(page_start, page_len, READWRITE)!;
mem.memory.protect(page_start, page_len, READWRITE)!;
}
mem.last_page = page_after;
}
@@ -234,8 +234,8 @@ macro void unprotect(Vmem* mem, usz after) @local
{
usz start = page_after << shift;
usz len = (last_page - page_after) << shift;
if (mem.options.shrink_on_reset) (void)mem.memory.release(start, len);
if (mem.options.protect_unused_pages) (void)mem.memory.set_access(start, len, PROTECTED);
if (mem.options.protect_unused_pages) (void)mem.memory.protect(start, len, PROTECTED);
if (mem.options.shrink_on_reset) (void)mem.memory.decommit(start, len);
}
mem.allocated = after;
}

26
lib/std/core/os/virtual_mem.c3
View File

@@ -39,7 +39,19 @@ fn VirtualMemory? virtual_alloc(usz size, VirtualMemoryAccess access)
}
}
macro void? VirtualMemory.commit(self, usz offset, usz len) {}
<*
@param offset : "Starting from what offset to commit"
@param len : "To what len to commit"
@require offset < self.size : "Offset out of range"
@require offset + len < self.size : "Length out of range"
@require offset == 0 || math::is_power_of_2(offset) : "Offset should be a power of 2"
@require math::is_power_of_2(len) : "Length should be a multiple of the page size"
@return? VMEM_UPDATE_FAILED, VMEM_ACCESS_NOT_ALLOWED, VMEM_PAGE_NOT_ALIGNED, VMEM_OVERFLOW, VMEM_UNKNOWN_ERROR
*>
macro void? VirtualMemory.commit(self, usz offset, usz len)
{
return self.protect(offset, len, READWRITE);
}
<*
@param offset : "Starting from what offset to update"
@@ -51,7 +63,7 @@ macro void? VirtualMemory.commit(self, usz offset, usz len) {}
@require math::is_power_of_2(len) : "Length should be a multiple of the page size"
@return? VMEM_ACCESS_NOT_ALLOWED, VMEM_PAGE_NOT_ALIGNED, VMEM_OVERFLOW, VMEM_UNKNOWN_ERROR
*>
fn void? VirtualMemory.set_access(self, usz offset, usz len, VirtualMemoryAccess access)
fn void? VirtualMemory.protect(self, usz offset, usz len, VirtualMemoryAccess access)
{
if (posix::mprotect(self.ptr + offset, len, access.posix_val))
{
@@ -75,7 +87,7 @@ fn void? VirtualMemory.set_access(self, usz offset, usz len, VirtualMemoryAccess
@require math::is_power_of_2(len) : "Length should be a multiple of the page size"
@return? VMEM_UPDATE_FAILED
*>
fn void? VirtualMemory.release(self, usz offset, usz len)
fn void? VirtualMemory.decommit(self, usz offset, usz len)
{
if (posix::madvise(self.ptr + offset, len, posix::MADV_DONTNEED)) return VMEM_UPDATE_FAILED?;
}
@@ -142,7 +154,7 @@ macro void? VirtualMemory.commit(self, usz offset, usz len)
@require math::is_power_of_2(len) : "Length should be a multiple of the page size"
@return? VMEM_UPDATE_FAILED
*>
macro void? VirtualMemory.set_access(self, usz offset, usz len, VirtualMemoryAccess access)
macro void? VirtualMemory.protect(self, usz offset, usz len, VirtualMemoryAccess access)
{
Win32_Protect old;
if (!win32::virtualProtect(self.ptr + offset, len, access.win32_val, &old))
@@ -152,15 +164,15 @@ macro void? VirtualMemory.set_access(self, usz offset, usz len, VirtualMemoryAcc
}
<*
@param offset : "Starting from what offset to release"
@param len : "To what len to release"
@param offset : "Starting from what offset to decommit"
@param len : "To what len to decommit"
@require offset < self.size : "Offset out of range"
@require offset + len < self.size : "Length out of range"
@require offset == 0 || math::is_power_of_2(offset) : "Offset should be a power of 2"
@require math::is_power_of_2(len) : "Length should be a multiple of the page size"
@return? VMEM_UPDATE_FAILED
*>
fn void? VirtualMemory.release(self, usz offset, usz len)
fn void? VirtualMemory.decommit(self, usz offset, usz len)
{
if (!win32::virtualFree(self.ptr + offset, len, MEM_DECOMMIT)) return VMEM_UPDATE_FAILED?;
}