PNG  IHDR pHYs   OiCCPPhotoshop ICC profilexڝSgTS=BKKoR RB&*! J!QEEȠQ, !{kּ> H3Q5 B.@ $pd!s#~<<+"x M0B\t8K@zB@F&S`cbP-`'{[! eDh;VEX0fK9-0IWfH  0Q){`##xFW<+*x<$9E[-qWW.(I+6aa@.y24x6_-"bbϫp@t~,/;m%h^ uf@Wp~<5j>{-]cK'Xto(hw?G%fIq^D$.Tʳ?D*A, `6B$BB dr`)B(Ͱ*`/@4Qhp.U=pa( Aa!ڈbX#!H$ ɈQ"K5H1RT UH=r9\F;2G1Q= C7F dt1r=6Ыhڏ>C03l0.B8, c˱" VcϱwE 6wB aAHXLXNH $4 7 Q'"K&b21XH,#/{C7$C2'ITFnR#,4H#dk9, +ȅ3![ b@qS(RjJ4e2AURݨT5ZBRQ4u9̓IKhhitݕNWGw Ljg(gwLӋT071oUX**| J&*/Tު UUT^S}FU3S ԖUPSSg;goT?~YYLOCQ_ cx,!k u5&|v*=9C3J3WRf?qtN (~))4L1e\kXHQG6EYAJ'\'GgSSݧ M=:.kDwn^Loy}/TmG X $ <5qo</QC]@Caaᄑ.ȽJtq]zۯ6iܟ4)Y3sCQ? 0k߬~OCOg#/c/Wװwa>>r><72Y_7ȷOo_C#dz%gA[z|!?:eAAA!h쐭!ΑiP~aa~ 'W?pX15wCsDDDޛg1O9-J5*>.j<74?.fYXXIlK9.*6nl {/]py.,:@LN8A*%w% yg"/6шC\*NH*Mz쑼5y$3,幄'L Lݛ:v m2=:1qB!Mggfvˬen/kY- BTZ(*geWf͉9+̳ې7ᒶKW-X潬j9(xoʿܔĹdff-[n ڴ VE/(ۻCɾUUMfeI?m]Nmq#׹=TR+Gw- 6 U#pDy  :v{vg/jBFS[b[O>zG499?rCd&ˮ/~јѡ򗓿m|x31^VwwO| (hSЧc3- cHRMz%u0`:o_F@8N ' p @8N@8}' p '#@8N@8N pQ9p!i~}|6-ӪG` VP.@*j>[ K^<֐Z]@8N'KQ<Q(`s" 'hgpKB`R@Dqj '  'P$a ( `D$Na L?u80e J,K˷NI'0eݷ(NI'؀ 2ipIIKp`:O'`ʤxB8Ѥx Ѥx $ $P6 :vRNb 'p,>NB 'P]-->P T+*^h& p '‰a ‰ (ĵt#u33;Nt̵'ޯ; [3W ~]0KH1q@8]O2]3*̧7# *p>us p _6]/}-4|t'|Smx= DoʾM×M_8!)6lq':l7!|4} '\ne t!=hnLn (~Dn\+‰_4k)0e@OhZ`F `.m1} 'vp{F`ON7Srx 'D˸nV`><;yMx!IS钦OM)Ե٥x 'DSD6bS8!" ODz#R >S8!7ّxEh0m$MIPHi$IvS8IN$I p$O8I,sk&I)$IN$Hi$I^Ah.p$MIN$IR8I·N "IF9Ah0m$MIN$IR8IN$I 3jIU;kO$ɳN$+ q.x* tEXtComment

Viewing File: /opt/cloudlinux/venv/lib/python3.11/site-packages/smmap/test/test_tutorial.py

from .lib import TestBase


class TestTutorial(TestBase):

    def test_example(self):
        # Memory Managers
        ##################
        import smmap
        # This instance should be globally available in your application
        # It is configured to be well suitable for 32-bit or 64 bit applications.
        mman = smmap.SlidingWindowMapManager()

        # the manager provides much useful information about its current state
        # like the amount of open file handles or the amount of mapped memory
        assert mman.num_file_handles() == 0
        assert mman.mapped_memory_size() == 0
        # and many more ...

        # Cursors
        ##########
        import smmap.test.lib
        with smmap.test.lib.FileCreator(1024 * 1024 * 8, "test_file") as fc:
            # obtain a cursor to access some file.
            c = mman.make_cursor(fc.path)

            # the cursor is now associated with the file, but not yet usable
            assert c.is_associated()
            assert not c.is_valid()

            # before you can use the cursor, you have to specify a window you want to
            # access. The following just says you want as much data as possible starting
            # from offset 0.
            # To be sure your region could be mapped, query for validity
            assert c.use_region().is_valid()        # use_region returns self

            # once a region was mapped, you must query its dimension regularly
            # to assure you don't try to access its buffer out of its bounds
            assert c.size()
            c.buffer()[0]           # first byte
            c.buffer()[1:10]            # first 9 bytes
            c.buffer()[c.size() - 1]  # last byte

            # you can query absolute offsets, and check whether an offset is included
            # in the cursor's data.
            assert c.ofs_begin() < c.ofs_end()
            assert c.includes_ofs(100)

            # If you are over out of bounds with one of your region requests, the
            # cursor will be come invalid. It cannot be used in that state
            assert not c.use_region(fc.size, 100).is_valid()
            # map as much as possible after skipping the first 100 bytes
            assert c.use_region(100).is_valid()

            # You can explicitly free cursor resources by unusing the cursor's region
            c.unuse_region()
            assert not c.is_valid()

            # Buffers
            #########
            # Create a default buffer which can operate on the whole file
            buf = smmap.SlidingWindowMapBuffer(mman.make_cursor(fc.path))

            # you can use it right away
            assert buf.cursor().is_valid()

            buf[0]  # access the first byte
            buf[-1]  # access the last ten bytes on the file
            buf[-10:]  # access the last ten bytes

            # If you want to keep the instance between different accesses, use the
            # dedicated methods
            buf.end_access()
            assert not buf.cursor().is_valid()  # you cannot use the buffer anymore
            assert buf.begin_access(offset=10)  # start using the buffer at an offset
Back to Directory=ceiIENDB`