54 lines
10 KiB
Plaintext
54 lines
10 KiB
Plaintext
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JÀj4 ã ó† — d Z ddlZddlZddlmZmZ ddlmZ g d¢Zd„ Zd„ Z G d„ d « Z G d
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„ d « Z
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G d „ d
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e « Z y)zlModule containing a memory memory manager which provides a sliding window on a number of memory mapped filesé N)ÚmmapÚ ACCESS_READ©ÚALLOCATIONGRANULARITY)Ú
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align_to_mmapÚ is_64_bitÚ MapWindowÚ MapRegionÚ
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MapRegionListr c óF — | t z t z }|r|| k7 r |t z
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}|S )a=
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Align the given integer number to the closest page offset, which usually is 4096 bytes.
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:param round_up: if True, the next higher multiple of page size is used, otherwise
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the lower page_size will be used (i.e. if True, 1 becomes 4096, otherwise it becomes 0)
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:return: num rounded to closest pager )ÚnumÚround_upÚress úM/home/antigravity/intellecton/venv/lib/python3.12/site-packages/smmap/util.pyr r s. € ð Ô'Ñ 'Ô+@Ñ
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@€CÙ�S˜C’ZØ Ô$Ñ$ˆà €Jó c ó( — t j dkD S )zO:return: True if the system is 64 bit. Otherwise it can be assumed to be 32 bitl ÿÿ )ÚsysÚmaxsize© r r r r s € ä �;‰;˜ Ñ &Ð&r c óH — e Zd ZdZdZd„ Zd„ Zed„ « Zd„ Z d„ Z
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d„ Z d „ Z y
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) r zWUtility type which is used to snap windows towards each other, and to adjust their size©ÚofsÚsizec ó — || _ || _ y ©Nr )ÚselfÚoffsetr s r Ú__init__zMapWindow.__init__- s € ؈ŒØˆ� r c ó8 — d| j | j fz S )NzMapWindow(%i, %i)r ©r s r Ú__repr__zMapWindow.__repr__1 s € Ø" d§h¡h°· ± Ð%:Ñ:Ð:r c óD — | |j |j « « S )z!:return: new window from a region©Ú_br )ÚclsÚregions r Ú from_regionzMapWindow.from_region4 s € ñ �6—9‘9˜fŸk™k›mÓ,Ð,r c ó4 — | j | j z S r r r s r Úofs_endzMapWindow.ofs_end9 s € Ø�x‰x˜$Ÿ)™)Ñ#Ð#r c ó¸ — t | j d« }| xj | j |z
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z
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c_ || _ t | j d« | _ y)z<Assures the previous window area is contained in the new oner é N)r r r )r Únofss r ÚalignzMapWindow.align< sA € ä ˜TŸX™X qÓ)ˆØ � Š �T—X‘X ‘_Ñ$� ؈ŒÜ! $§)¡)¨QÓ/ˆ� r c óÔ — | j |j « z
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}|| j z }||t ||« z
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z }| xj |z c_ | xj |z
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c_ y)zÛAdjust the offset to start where the given window on our left ends if possible,
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but don't make yourself larger than max_size.
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The resize will assure that the new window still contains the old window areaN)r r) r Úmin)r ÚwindowÚmax_sizeÚrofsÚnsizes r Úextend_left_tozMapWindow.extend_left_toC sY € ð �x‰x˜&Ÿ.™.Ó*Ñ*ˆØ�t—y‘yÑ ˆØ �œ˜E 8Ó,Ñ,Ñ,ˆØ �Š�DÑ�Ø � Š �TÑŽ r c óv — t | j |j | j « z
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z |« | _ y)zpAdjust the size to make our window end where the right window begins, but don't
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get larger than max_sizeN)r/ r r r) )r r0 r1 s r Úextend_right_tozMapWindow.extend_right_toM s* € ô ˜Ÿ ™ V§Z¡Z°$·,±,³.Ñ%@ÑAÀ8ÓLˆ� r N)
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Ú__name__Ú
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__module__Ú __qualname__Ú__doc__Ú __slots__r r! Ú classmethodr' r) r- r4 r6 r r r r r % s? „ áað€Iò
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ò;ð ñ-ó ð-ò$ò0òóMr r c ó^ — e Zd ZdZg d¢Zdd„Zd„ Zd„ Zd„ Zd„ Z d„ Z
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d „ Z d
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„ Z d „ Z
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dd „Zd
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„ Zy)r
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z{Defines a mapped region of memory, aligned to pagesizes
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**Note:** deallocates used region automatically on destruction)r$ Ú_mfÚ_ucÚ_sizeÚ __weakref__c ód — || _ d| _ d| _ t |t « r|}n9t j |t
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j t t
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dd« z |z « } t t |¬« }|}|}t t j |« j |z
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|« } t || fi |¤Ž| _ t! | j « | _ t |t" « rt j$ |« | j' « y# t |t" « rt j$ |« w w xY w)aÑ Initialize a region, allocate the memory map
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:param path_or_fd: path to the file to map, or the opened file descriptor
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:param ofs: **aligned** offset into the file to be mapped
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:param size: if size is larger then the file on disk, the whole file will be
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allocated the the size automatically adjusted
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:param flags: additional flags to be given when opening the file.
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:raise Exception: if no memory can be allocatedr ÚO_BINARY)Úaccessr N)r$ r@ r? Ú
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isinstanceÚintÚosÚopenÚO_RDONLYÚgetattrÚdictr r/ ÚfstatÚst_sizer r> ÚlenÚstrÚcloseÚincrement_client_count)
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r Ú
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path_or_fdr r ÚflagsÚfdÚkwargsÚcorrected_sizeÚsizeofsÚ actual_sizes
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r r zMapRegion.__init__c sñ € 𠈌؈Œ
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؈Œä �j¤#Ô &؉Bä—‘˜¤R§[¡[´7¼2¸zÈ1Ó3MÑ%MÐPUÑ%UÓVˆBð ܤ°SÔ9ˆFØ !ˆN؈Gô
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œbŸh™h r›l× 2Ñ 2°WÑ <¸nÓMˆKܘB Ñ6¨vÑ6ˆDŒHô ˜TŸX™X› ˆDŒJä˜*¤cÔ*Ü—‘˜• ð
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×#Ñ#Õ%øô ˜*¤cÔ*Ü—‘˜• ð +ús
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Á#A-D Ä(D/c ó@ — d| j | j « fz S )NzMapRegion<%i, %i>r# r s r r! zMapRegion.__repr__Š s € Ø" d§g¡g¨t¯y©y«{Ð%;Ñ;Ð;r c ó — | j S )z':return: a buffer containing the memory©r> r s r ÚbufferzMapRegion.buffer� ó € à�x‰xˆr c ó — | j S )z+:return: a memory map containing the memoryr[ r s r Úmapz
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MapRegion.map“ r] r c ó — | j S )z>:return: absolute byte offset to the first byte of the mapping)r$ r s r Ú ofs_beginzMapRegion.ofs_begin— s € à�w‰wˆr c ó — | j S )z1:return: total size of the mapped region in bytes)r@ r s r r zMapRegion.size› s € à�z‰zÐr c ó4 — | j | j z S )zE:return: Absolute offset to one byte beyond the mapping into the file©r$ r@ r s r r) zMapRegion.ofs_endŸ s € à�w‰w˜Ÿ™Ñ#Ð#r c ód — | j |cxk xr | j | j z k S c S )zB:return: True if the given offset can be read in our mapped regionrd ©r r s r Ú includes_ofszMapRegion.includes_ofs£ s) € à�w‰w˜#Ö4 §¡¨$¯*©*Ñ 4Ñ4Ð4Ñ4Ð4r c ó — | j S )z6:return: number of clients currently using this region)r? r s r Ú client_countzMapRegion.client_count§ r] r c ó¼ — | xj |z
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c_ | j dkD sJ d| j z « ‚| j « dk( r| j « yy)zîAdjust the usage count by the given positive or negative offset.
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