Todo: 集成多平台 解决因SaiNiu线程抢占资源问题 本地提交测试环境打包 和 正式打包脚本与正式环境打包bat 提交Python32环境包 改进多日志文件生成情况修改打包日志细节

Utils/PythonNew32/Lib/site-packages/win32/Demos/mmapfile_demo.py

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+import os
+import tempfile
+
+import mmapfile
+import win32api
+import winerror
+
+system_info = win32api.GetSystemInfo()
+page_size = system_info[1]
+alloc_size = system_info[7]
+
+fname = tempfile.mktemp()
+mapping_name = os.path.split(fname)[1]
+fsize = 8 * page_size
+print(fname, fsize, mapping_name)
+
+m1 = mmapfile.mmapfile(File=fname, Name=mapping_name, MaximumSize=fsize)
+m1.seek(100)
+m1.write_byte(b"?")
+m1.seek(-1, 1)
+assert m1.read_byte() == b"?"
+
+## A reopened named mapping should have exact same size as original mapping
+m2 = mmapfile.mmapfile(Name=mapping_name, File=None, MaximumSize=fsize * 2)
+assert m2.size() == m1.size()
+m1.seek(0, 0)
+m1.write(fsize * b"s")
+assert m2.read(fsize) == fsize * b"s"
+
+move_src = 100
+move_dest = 500
+move_size = 150
+
+m2.seek(move_src, 0)
+assert m2.tell() == move_src
+m2.write(b"m" * move_size)
+m2.move(move_dest, move_src, move_size)
+m2.seek(move_dest, 0)
+assert m2.read(move_size) == b"m" * move_size
+##    m2.write('x'* (fsize+1))
+
+m2.close()
+m1.resize(fsize * 2)
+assert m1.size() == fsize * 2
+m1.seek(fsize)
+m1.write(b"w" * fsize)
+m1.flush()
+m1.close()
+os.remove(fname)
+
+
+## Test a file with size larger than 32 bits
+## need 10 GB free on drive where your temp folder lives
+fname_large = tempfile.mktemp()
+mapping_name = "Pywin32_large_mmap"
+offsetdata = b"This is start of offset"
+
+## Deliberately use odd numbers to test rounding logic
+fsize = (1024 * 1024 * 1024 * 10) + 333
+offset = (1024 * 1024 * 32) + 42
+view_size = (1024 * 1024 * 16) + 111
+
+## round mapping size and view size up to multiple of system page size
+if fsize % page_size:
+    fsize += page_size - (fsize % page_size)
+if view_size % page_size:
+    view_size += page_size - (view_size % page_size)
+## round offset down to multiple of allocation granularity
+offset -= offset % alloc_size
+
+m1 = None
+m2 = None
+try:
+    try:
+        m1 = mmapfile.mmapfile(fname_large, mapping_name, fsize, 0, offset * 2)
+    except mmapfile.error as exc:
+        # if we don't have enough disk-space, that's OK.
+        if exc.winerror != winerror.ERROR_DISK_FULL:
+            raise
+        print("skipping large file test - need", fsize, "available bytes.")
+    else:
+        m1.seek(offset)
+        m1.write(offsetdata)
+
+        ## When reopening an existing mapping without passing a file handle, you have
+        ##  to specify a positive size even though it's ignored
+        m2 = mmapfile.mmapfile(
+            File=None,
+            Name=mapping_name,
+            MaximumSize=1,
+            FileOffset=offset,
+            NumberOfBytesToMap=view_size,
+        )
+        assert m2.read(len(offsetdata)) == offsetdata
+finally:
+    if m1 is not None:
+        m1.close()
+    if m2 is not None:
+        m2.close()
+    if os.path.exists(fname_large):
+        os.remove(fname_large)